Easthampton climate — normals and trends
Easthampton (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 9.1 °C and it receives 1,201 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (22.0 °C on average) and the coldest is January (-4.1 °C). Rainfall peaks in May.
Easthampton averages 123 frost days, 16 hot days (≥ 30 °C) and 126 rainy days per year.
Easthampton has warmed by +1.8 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 134 to 112 per year over the period.
The hottest day of the period reached 37.8 °C (on 2 September 1953) and the coldest -27.1 °C (on 13 February 1967).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
EasthamptonMassachusetts
- coords
- 42.27°, -72.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.1°C
Average daily high
14.0°C
Average daily low
4.5°C
Annual rainfall
1,201mm
Sunshine / day
8.7h
Mean relative humidity
70%
Average peak wind
15.7km/h
Seasonal range
26.1°C
Frost days (< 0 °C)
123 d/yr
Hot days (≥ 30 °C)
16 d/yr
Rainy days (≥ 1 mm)
126 d/yr
Annual snowfall
129.2 cm
Average feels-like high
12.1 °C
Average feels-like low
1.6 °C
Average peak gust
38.3 km/h
Tropical nights (≥ 20 °C)
12 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.44 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.8 °C
2 September 1953
Coldest day
-27.1 °C
13 February 1967
Wettest day
199 mm
19 August 1955
Windiest day
46.8 km/h
25 November 1950
Strongest gust
137.2 km/h
25 November 1950
Hottest feels-like
42.4 °C
26 August 1948
Coldest feels-like
-32.3 °C
30 December 1962
Snowiest day
34.4 cm
14 March 2017
Sunniest day
14.7 h
12 June 2004
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -0.3 °C | -0.4 °C | 47 mm | -44 mm |
| Feb | 1.1 °C | -0.5 °C | 89 mm | +3 mm |
| Mar | 10.2 °C | +3.7 °C | 92 mm | -13 mm |
| Apr | 15.3 °C | +1.9 °C | 102 mm | -3 mm |
| May | 19.3 °C | -0.3 °C | 237 mm | +131 mm |
| Jun | 25.5 °C | +1.1 °C | 77 mm | -23 mm |
| Jul | 29.1 °C | +2.0 °C | 112 mm | +10 mm |
| Aug | 26.4 °C | +0.4 °C | 33 mm | -72 mm |
| Sep | 24.1 °C | +2.2 °C | 84 mm | -14 mm |
| Oct | 16.4 °C | +0.6 °C | 129 mm | +27 mm |
| Nov | 8.5 °C | -0.6 °C | 66 mm | -35 mm |
| Dec | 1.2 °C | -1.4 °C | 82 mm | -22 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Easthampton?
Easthampton has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 9.1 °C and it receives 1,201 mm of precipitation per year.
What is the hottest day ever recorded in Easthampton?
The hottest day measured in Easthampton between 1940 and 2025 was 2 September 1953, reaching 37.8 °C.
What is the coldest day in Easthampton?
The coldest day measured in Easthampton between 1940 and 2025 was 13 February 1967, at -27.1 °C.
Does it snow in Easthampton?
Yes. Easthampton gets on average 129.2 cm of snow per year and has around 123 frost days.
Has the climate of Easthampton warmed?
Yes: Easthampton warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Easthampton?
The wettest day measured in Easthampton between 1940 and 2025 was 19 August 1955, with 199 mm of rain in 24 hours.
What was the windiest day in Easthampton?
The windiest day measured in Easthampton between 1940 and 2025 was 25 November 1950, with winds reaching 46.8 km/h.
What is the warmest month in Easthampton?
The warmest month in Easthampton is July (22.0 °C on average); the coldest is January (-4.1 °C).
How much does it rain in Easthampton?
Easthampton receives on average 1,201 mm of precipitation per year, spread over about 126 rainy days.
Is it sunny in Easthampton?
Easthampton gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Easthampton?
The heaviest 24-hour snowfall measured in Easthampton between 1940 and 2025 was 14 March 2017, with 34.4 cm.
Are there tropical nights in Easthampton?
Yes: Easthampton has on average 12 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Easthampton?
In Easthampton, between 1940 and 2025, the highest apparent temperature reached 42.4 °C on 26 August 1948, and the lowest was -32.3 °C on 30 December 1962.
Compare Easthampton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Easthampton