Climate averages 1991–2020
Hartford weather
in June.
A warm, wet month: the 3rd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Hartford: daytime highs average 25.4°C and nights cool to about 15.1°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 96 mm of rain on roughly 12 days, which makes June a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 09 min on an average June day.
The nearest other city in this atlas is New Britain (14 km away). In June its highs average 25.2°C, about as warm as Hartford, with 96 mm of rain.
Among the 498 cities listed in the United States, Hartford ranks joint 360th of 498 for the warmest June highs and joint 308th of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Hartford is 2.5°C cooler than that mean.
From June to July, average highs rise by 3.2°C to 28.6°C, and monthly rainfall falls from 96 mm to 89 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Hartford climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.0°C-6.9°C | -6.9°C | 84 | 9.3 | 9.510 h |
| February | 3.6°C-6.1°C | -6.1°C | 76 | 8.7 | 10.611 h |
| March | 8.0°C-2.1°C | -2.1°C | 103 | 10.5 | 11.912 h |
| April | 14.7°C3.8°C | 3.8°C | 91 | 10.8 | 13.313 h |
| May | 20.4°C9.7°C | 9.7°C | 84 | 10.9 | 14.515 h |
| June, selected | 25.4°C15.1°C | 15.1°C | 96 | 11.5 | 15.215 h |
| July | 28.6°C18.4°C | 18.4°C | 89 | 10.6 | 14.915 h |
| August | 27.6°C17.8°C | 17.8°C | 100 | 10.1 | 13.914 h |
| September | 23.4°C13.9°C | 13.9°C | 97 | 8.5 | 12.513 h |
| October | 16.6°C7.7°C | 7.7°C | 103 | 9.2 | 11.111 h |
| November | 10.3°C2.0°C | 2.0°C | 84 | 8.5 | 9.910 h |
| December | 4.7°C-3.1°C | -3.1°C | 104 | 10.0 | 9.29 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- New Britain in JuneUnited States · 14 kmHigh 25.2°C · Low 15.2°C · 96 mm rain
- Waterbury in JuneUnited States · 38 kmHigh 25.1°C · Low 15.6°C · 100 mm rain
- Springfield (Massachusetts), United States in JuneUnited States · 38 kmHigh 24.9°C · Low 14.9°C · 93 mm rain
- New Haven in JuneUnited States · 55 kmHigh 23.6°C · Low 16.2°C · 98 mm rain
- Danbury in JuneUnited States · 76 kmHigh 25.0°C · Low 15.6°C · 111 mm rain
- Bridgeport in JuneUnited States · 77 kmHigh 24.3°C · Low 16.5°C · 97 mm rain
- Worcester, United States in JuneUnited States · 92 kmHigh 24.3°C · Low 14.7°C · 100 mm rain
- Norwalk in JuneUnited States · 94 kmHigh 24.8°C · Low 16.9°C · 94 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Hartford) is explained once on the Hartford year overview and on the Sources, method and limits page.
New Britain lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.