Climate averages 1991–2020
Danbury weather
in May.
A mild, wet month: the 5th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Danbury: daytime highs average 19.9°C and nights cool to about 10.2°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 99 mm of rain on roughly 12 days, which makes May a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 29 min on an average May day.
The nearest other city in this atlas is Norwalk (31 km away). In May its highs average 19.5°C, about as warm as Danbury, with 85 mm of rain.
Among the 498 cities listed in the United States, Danbury ranks joint 384th of 498 for the warmest May highs and joint 359th of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Danbury is 3.9°C cooler than that mean.
From May to June, average highs rise by 5.1°C to 25.0°C, and monthly rainfall rises from 99 mm to 111 mm.
The annual picture
May in context
Monthly precipitation
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
Danbury climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.0°C-6.0°C | -6.0°C | 88 | 9.4 | 9.610 h |
| February | 3.4°C-5.4°C | -5.4°C | 78 | 8.8 | 10.611 h |
| March | 7.8°C-1.5°C | -1.5°C | 106 | 11.1 | 11.912 h |
| April | 14.4°C4.4°C | 4.4°C | 97 | 11.3 | 13.313 h |
| May, selected | 19.9°C10.2°C | 10.2°C | 99 | 12.0 | 14.514 h |
| June | 25.0°C15.6°C | 15.6°C | 111 | 12.0 | 15.115 h |
| July | 28.1°C18.9°C | 18.9°C | 108 | 11.3 | 14.815 h |
| August | 27.1°C18.3°C | 18.3°C | 115 | 10.9 | 13.814 h |
| September | 23.0°C14.6°C | 14.6°C | 108 | 9.3 | 12.513 h |
| October | 16.3°C8.6°C | 8.6°C | 108 | 9.4 | 11.111 h |
| November | 10.1°C2.8°C | 2.8°C | 86 | 8.6 | 9.910 h |
| December | 4.6°C-2.1°C | -2.1°C | 104 | 10.5 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
May in nearby cities
- Norwalk in MayUnited States · 31 kmHigh 19.5°C · Low 11.2°C · 85 mm rain
- Bridgeport in MayUnited States · 33 kmHigh 19.0°C · Low 10.9°C · 92 mm rain
- Waterbury in MayUnited States · 38 kmHigh 20.0°C · Low 10.3°C · 87 mm rain
- Stamford in MayUnited States · 39 kmHigh 19.8°C · Low 11.3°C · 85 mm rain
- New Haven in MayUnited States · 45 kmHigh 18.4°C · Low 10.6°C · 98 mm rain
- Greenburgh in MayUnited States · 52 kmHigh 20.2°C · Low 11.2°C · 87 mm rain
- New Britain in MayUnited States · 63 kmHigh 20.2°C · Low 9.8°C · 84 mm rain
- Yonkers in MayUnited States · 64 kmHigh 20.6°C · Low 11.2°C · 91 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 Danbury) is explained once on the Danbury year overview and on the Sources, method and limits page.