Hartford County · Connecticut
Hartford, CT weather averages
NOAA climate normals for 1991-2020, measured at Hartford Brainard Fld, 4.2 km from the city centre — month by month temperature, rain and snow.
Quick answer
Hartford averages a daily high of 60.8°F and a daily low of 41.6°F across the year, with 43.6 inches of precipitation. July is the warmest month at 83.9°F and January the coldest at 18.5°F.
- Average annual high
- 60.8°FWarmest month July
- Average annual low
- 41.6°FColdest month January
- Precipitation per year
- 43.6 inWettest month October
- Snowfall per year
- —118.3 days at or below 32°F
Hartford weather month by month
Normal daily high and low, precipitation and snowfall for each month, 1991-2020.
| Month | High °F | Low °F | Precip in | Snow in | Range |
|---|---|---|---|---|---|
| January | 35.7 | 18.5 | 3.15 | — | 18.5 to 35.7 degrees |
| February | 39.3 | 21.6 | 2.65 | — | 21.6 to 39.3 degrees |
| March | 47.5 | 28.9 | 3.57 | — | 28.9 to 47.5 degrees |
| April | 59.8 | 39.5 | 3.88 | — | 39.5 to 59.8 degrees |
| May | 70.2 | 49 | 3.89 | — | 49 to 70.2 degrees |
| June | 79.1 | 58.6 | 3.99 | — | 58.6 to 79.1 degrees |
| July | 83.9 | 64.3 | 4 | — | 64.3 to 83.9 degrees |
| August | 82.3 | 62.8 | 3.66 | — | 62.8 to 82.3 degrees |
| September | 74.7 | 54 | 3.48 | — | 54 to 74.7 degrees |
| October | 63.1 | 41.8 | 4.14 | — | 41.8 to 63.1 degrees |
| November | 52.2 | 34.6 | 3.84 | — | 34.6 to 52.2 degrees |
| December | 40.7 | 24.2 | 3.35 | — | 24.2 to 40.7 degrees |
Source: NOAA NCEI, U.S. Climate Normals 1991-2020 — station USW00014752, Hartford Brainard Fld · rates as published for 1991-2020 normals
How to read Hartford climate normals
What a climate normal is, and what it is not.
A normal is the average of thirty years of daily observations at one station — here Hartford Brainard Fld, 4.2 km from the centre of Hartford. It describes a typical year, so any single year will run warmer, cooler, wetter or drier. Readings taken at an airport on the edge of town usually sit a degree or two below a dense downtown on summer nights. Hartford sees about 11.9 days a year at or above 90°F and about 74 days with a tenth of an inch of precipitation or more.
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Other Hartford data on this site.