AI-generatedHartford at a glance
- Best time
- Apr – Jun, Aug – Oct
- Warmest month
- Jul · 30°
- Sunshine a year
- 2,150 h
- Rain a year
- 1,130 mm
- Climate
- Continental
- Time zone
- UTC−5 / UTC−4
- Elevation
- 18 m
Climate in Hartford
Hartford has warm to hot summers and cold winters with occasional snow. July is the warmest month with average highs of 30 °C, while January is the coolest at 2 °C. With around 2,150 hours of sunshine a year, Hartford is moderately sunny; July is the sunniest month with 7.6 hours a day.
Holiday weather through the year
Best time to visit Hartford
The best time to visit Hartford is from April to June and from August to October. In August, September and October, though, the hurricane season is at its peak: check the forecast before you go. For sightseeing, day trips and hiking, conditions are most comfortable from April to June and from September to October. The wettest month is December with 105 mm of precipitation.
Hartford through the seasons
How the weather changes over the seasons, with averages for each.
Hartford in spring
Mar – May
Fair
- 9–23 °C by day
- 6.4 h of sun a day
- 33 rainy days in all
Hartford in summer
Jun – Aug
Good
- 27–30 °C by day
- 7.3 h of sun a day
- 33 rainy days in all
Hartford in autumn
Sep – Nov
Good
- 11–25 °C by day
- 5.3 h of sun a day
- 26 rainy days in all
Hartford in winter
Dec – Feb
Poor
- 2–5 °C by day
- 4.6 h of sun a day
- 29 rainy days in all
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Apr – Jun, Sep – Oct
15–28 °C and not too much rain
Snow
Dec – Mar
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Hartford for you.
Your best months: May, September
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Good
Best time to visit: April – June, August – October
October is the peak of the hurricane season Hurricane season
Good forSightseeing & walks
Keep in mindStorm season
A typical day in October
- Morning, 08:00: about 9°
- Midday, 13:00: about 17°
- Afternoon, 16:00: about 17°
- Evening, 20:00: about 12°
- Night, 23:00: about 10°
07:0118:11
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:44–07:39 · evening 17:34–18:28
- Blue hour
- Morning 06:33–06:44 · evening 18:28–18:39
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Hartford compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 21° at the start of the month to 15° at the end. The days get 1.3 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 21° | 15° |
| Night-time low | 9° | 4° |
| Daylight | 11.8 h | 10.5 h |
What is the weather like in Hartford in October?
In October, Hartford is mild: daytime highs average 18 °C, and nights cool down to about 6 °C. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 105 mm in total. All in all, October is a good month for a holiday in Hartford.
More details for October
- Daylight
- 11 h 10 min07:01 – 18:11
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 54 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−4offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %37 %
- Few rainy daysweight 30 %63 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Hartford
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
September has the better holiday weather in Hartford: score 81 against 76. In September, days are 7 °C warmer than in October. The sun shines an hour longer a day in September.
| Month | October | September |
|---|---|---|
| Holiday weather score | 76 | 81better |
| Daytime high | 18° | 25° |
| Night-time low | 6° | 13° |
| Sunshine | 5.2 h | 6.1 hbetter |
| Rainy days | 9 | 9 |
| Rainfall | 105 mm | 105 mm |
| Muggy days | 1better | 6 |
Based on the climate averages 1996–2025.
Hartford month by month
The typical weather for every month at a glance.
23January2° · 4.5 h
In January, Hartford is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−7 °C). Expect around 4.5 hours of sunshine a day. Precipitation falls on about 10 days, totalling 87 mm; on about 5 of them it snows. All in all, January is not an ideal month for a holiday in Hartford.
Hartford in January27February4° · 5.2 h
In February, Hartford is cold: daytime highs average 4 °C, and nights often drop below freezing (−6 °C). Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 76 mm in total. Snow falls on about 4 days. All in all, February is not an ideal month for a holiday in Hartford.
Hartford in February32March9° · 6.0 h
In March, Hartford is cold: daytime highs average 9 °C, and nights often drop below freezing (−2 °C). Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 102 mm in total. Snow falls on about 3 days. All in all, March is not an ideal month for a holiday in Hartford.
Hartford in March69April16° · 6.5 h
In April, Hartford is mild: daytime highs average 16 °C, and nights cool down to about 4 °C. The sun shines for around 6.5 hours a day. Rain is frequent, with about 11 rainy days and 94 mm in total. All in all, April is a good month for a holiday in Hartford.
Hartford in April77May23° · 6.8 h
In May, Hartford is warm: daytime highs average 23 °C, and nights cool down to about 10 °C. The sun shines for around 6.8 hours a day. Rain is frequent, with about 11 rainy days and 93 mm in total. All in all, May is a good month for a holiday in Hartford.
Hartford in May77June27° · 7.3 h
In June, Hartford is hot: daytime highs average 27 °C, and nights cool down to about 15 °C. The sun shines for around 7.3 hours a day. Rain is frequent, with about 12 rainy days and 97 mm in total. On about 8 days the thermometer climbs to 30 °C or more. All in all, June is a good month for a holiday in Hartford.
Hartford in June61July30° · 7.6 h
In July, Hartford is hot: daytime highs average 30 °C, and nights cool down to about 18 °C. The sun shines for around 7.6 hours a day. Rain is frequent, with about 11 rainy days and 97 mm in total. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a good month for a holiday in Hartford.
Hartford in July67August29° · 6.9 h
In August, Hartford is hot: daytime highs average 29 °C, and nights cool down to about 17 °C. The sun shines for around 6.9 hours a day. Rain is frequent, with about 10 rainy days and 94 mm in total. On about 11 days the thermometer climbs to 30 °C or more. All in all, August is a good month for a holiday in Hartford.
Hartford in August81September25° · 6.1 h
In September, Hartford is warm: daytime highs average 25 °C, and nights cool down to about 13 °C. Expect around 6.1 hours of sunshine a day. Rain falls on about 9 days, adding up to 105 mm. All in all, September is an excellent month for a holiday in Hartford.
Hartford in September76October18° · 5.2 h
In October, Hartford is mild: daytime highs average 18 °C, and nights cool down to about 6 °C. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 105 mm in total. All in all, October is a good month for a holiday in Hartford.
Hartford in October43November11° · 4.6 h
In November, Hartford is cool: daytime highs average 11 °C, and nights cool down to about 1 °C. Expect around 4.6 hours of sunshine a day. Rain falls on about 9 days, adding up to 76 mm. All in all, November is a so-so month for a holiday in Hartford.
Hartford in November20December5° · 4.0 h
In December, Hartford is cold: daytime highs average 5 °C, and nights often drop below freezing (−4 °C). Expect around 4.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 105 mm in total. Snow falls on about 3 days. All in all, December is not an ideal month for a holiday in Hartford.
Hartford in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Hartford
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
- muggy month (15+ muggy days)
ColdOctober: nights around 6°. The room should be heated. Muggy on about 1 day (dew point 18 °C or more).
The coolest nights are in January (−7°), the warmest in July (18°). Nights are pleasant for sleeping (15 to 20 °C) from June to August. Nights fall below 8 °C on average from October to April, so the room should be heated. It is muggy (dew point 18 °C or more) on about 41 days a year, mostly in July.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 23 | 2° | −7° | 4.5 h | 10 | 87 |
| FebruaryFeb | 27 | 4° | −6° | 5.2 h | 9 | 76 |
| MarchMar | 32 | 9° | −2° | 6.0 h | 10 | 102 |
| AprilApr | 69 | 16° | 4° | 6.5 h | 11 | 94 |
| MayMay | 77 | 23° | 10° | 6.8 h | 11 | 93 |
| JuneJun | 77 | 27° | 15° | 7.3 h | 12 | 97 |
| JulyJul | 61 | 30° | 18° | 7.6 h | 11 | 97 |
| AugustAug | 67 | 29° | 17° | 6.9 h | 10 | 94 |
| SeptemberSep | 81 | 25° | 13° | 6.1 h | 9 | 105 |
| OctoberOct | 76 | 18° | 6° | 5.2 h | 9 | 105 |
| NovemberNov | 43 | 11° | 1° | 4.6 h | 9 | 76 |
| DecemberDec | 20 | 5° | −4° | 4.0 h | 10 | 105 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
41.76° N, 72.69° W · 18 m · America/New_York
Sunshine
Sunshine hours in Hartford
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.2 of 11.2 hours of daylight in Hartford, 46 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Hartford: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Hartford has about 9 rainy days with 105 mm of rain in total.
UV index
UV index in Hartford
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 9).
Minutes until sunburn in October
- Very fair skin
- about 35 min
- Fair skin
- about 45 min
- Light brown skin
- about 65 min
- Olive skin
- about 80 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Hartford
How breezy and how cloudy Hartford is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Hartford typically peaks at 15 km/h during the day: Beaufort 3, gentle breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 54 % of the sky over Hartford: variable cloud, with about 5.2 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat & humidity
Heat and humidity in Hartford
How often the day gets hot in Hartford (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Hartford has about 0 hot days, with an average daytime high of 18 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow
Snow in Hartford
Snow is possible in Hartford, but no month makes it likely: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Hartford.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Planning a trip to Hartford
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Hartford in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Hartford has its best school-holiday weather during May half-term (score 77) and its weakest during the Christmas holidays (score 22).
- 58
Easter holidays
Mar – Apr
Fair
- 14 °C by day
- 6.4 h of sun a day
- 11 rainy days a month
Keep in mind: Snow
- 77
May half-term
May – Jun
GoodBest holidays
- 23 °C by day
- 6.9 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 65
Summer holidays
Jul – Aug
Good
- 29 °C by day
- 7.1 h of sun a day
- 10 rainy days a month
Keep in mind: Storm season
- 76
October half-term
Oct
Good
- 18 °C by day
- 5.2 h of sun a day
- 9 rainy days a month
Good for: Sightseeing & walks
Keep in mind: Storm season
- 22
Christmas holidays
Dec – Jan
Poor
- 4 °C by day
- 4.3 h of sun a day
- 10 rainy days a month
Keep in mind: Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 7 h
- Distance
- 5,390 km
- Time zone
- UTC−4
- Jet lag
- About 3 days (5 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: USA
- Currency
- US Dollar (USD)
- Languages
- English, Spanish
- Sockets
- Type A, B · 120 V
- Traffic
- Drives on the right
- Dialling code
- +1
- Emergency number
- 911
UK plugs need a travel adapter
Only 120 V: chargers marked 100–240 V work, other devices need a voltage converter.
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Storm season
Hartford lies in an area that Atlantic hurricanes can reach. The hurricane season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
- January
- February
- March
- April
- May
- June: Season
- July: Season
- August: Peak
- September: Peak
- October: Peak
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.
Compare & alternatives
Compare with another place
Hartford compared
Put Hartford side by side with another destination.
Hartford vs New Haven
In October the holiday weather in Hartford and New Haven is about equally good (score 76 vs 77). During the day it is about as warm in New Haven as in Hartford. New Haven gets one more hour of sunshine a day.
| in October | Hartford | New Haven |
|---|---|---|
| Holiday weather score | 76 | 77 |
| Daytime high | 18° | 18° |
| Sea | no sea nearby | 18° |
| Sunshine | 5 h | 6 h |
| Rainy days | 9 | 10 |
| Best time | Apr – Jun, Aug – Oct | Jul – Sep |
Through the year
Best places in the country
USA in October: the best places
In October, Hartford ranks 6 among the 31 nearest destinations in this country.
- Philadelphia20°18°79
- 2Baltimore21°18°79
- 3New York19°18°78
- 4Harrisburg19°78
- 5Providence18°17°77
- 6HartfordThis page18°76
- 7Boston17°14°69
- 8Albany17°66
Places nearby
Near Hartford
Other destinations close by.
Places with a similar climate
Places with a climate like Hartford
Destinations whose weather through the year is closest to Hartford's – good alternatives.
Frequently asked questions about Hartford
When is the best time to visit Hartford?
The best time to visit Hartford is from April to June and from August to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Hartford?
July is the warmest month, with average highs of 30 °C and nights around 18 °C. January is the coolest month at 2 °C.
When does it rain most in Hartford?
The wettest month is December with 105 mm of precipitation. The driest month is February with 76 mm.
How many hours of sunshine does Hartford get?
Hartford gets around 2,150 hours of sunshine a year. The sunniest month is July with 7.6 hours a day; in December there are 4.0 hours a day.
What time zone is Hartford in?
Hartford is on UTC−5 in January and UTC−4 in July.
How long is the flight from London to Hartford?
A nonstop flight from London to Hartford takes about 7 h, for a straight-line distance of about 5,390 km.
When is hurricane season in Hartford?
Hartford lies in an area that Atlantic hurricanes can reach. The hurricane season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Which school holidays are best for Hartford?
Hartford has its best school-holiday weather during May half-term (score 77) and its weakest during the Christmas holidays (score 22). Holiday ratings (0–100): Easter holidays 58, May half-term 77, summer holidays 65, October half-term 76, Christmas holidays 22.