Sanford climate — normals and trends
Sanford (United States) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.2 °C and it receives 1,138 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 (21.4 °C on average) and the coldest is January (-5.4 °C). Rainfall peaks in November.
Sanford averages 126 frost days, 11 hot days (≥ 30 °C) and 123 rainy days per year.
Sanford has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The number of frost days there went from about 135 to 117 per year over the period.
The hottest day of the period reached 37.8 °C (on 24 June 2025) and the coldest -29.4 °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
SanfordMaine
- coords
- 43.44°, -70.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.2°C
Average daily high
12.7°C
Average daily low
3.9°C
Annual rainfall
1,138mm
Sunshine / day
8.8h
Mean relative humidity
72%
Average peak wind
16.5km/h
Seasonal range
26.8°C
Frost days (< 0 °C)
126 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
123 d/yr
Annual snowfall
147.4 cm
Average feels-like high
10.8 °C
Average feels-like low
0.9 °C
Average peak gust
38.1 km/h
Tropical nights (≥ 20 °C)
9 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
24 June 2025
Coldest day
-29.4 °C
13 February 1967
Wettest day
119 mm
11 September 1954
Windiest day
51.2 km/h
31 August 1954
Strongest gust
126.0 km/h
18 December 2023
Hottest feels-like
43.2 °C
2 August 1975
Coldest feels-like
-34.9 °C
13 February 1967
Snowiest day
37.2 cm
18 February 1952
Sunniest day
14.9 h
6 June 1940
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 | -1.0 °C | +0.2 °C | 40 mm | -48 mm |
| Feb | -0.7 °C | -0.9 °C | 89 mm | +4 mm |
| Mar | 7.5 °C | +2.8 °C | 102 mm | +1 mm |
| Apr | 13.1 °C | +1.7 °C | 122 mm | +24 mm |
| May | 17.0 °C | -0.8 °C | 195 mm | +104 mm |
| Jun | 24.2 °C | +1.2 °C | 42 mm | -53 mm |
| Jul | 28.1 °C | +2.0 °C | 81 mm | -17 mm |
| Aug | 26.2 °C | +1.0 °C | 29 mm | -60 mm |
| Sep | 22.7 °C | +1.8 °C | 69 mm | -18 mm |
| Oct | 16.3 °C | +1.5 °C | 97 mm | +1 mm |
| Nov | 7.5 °C | -0.6 °C | 70 mm | -38 mm |
| Dec | -0.1 °C | -1.8 °C | 91 mm | -13 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 Sanford?
Sanford has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.2 °C and it receives 1,138 mm of precipitation per year.
What is the hottest day ever recorded in Sanford?
The hottest day measured in Sanford between 1940 and 2025 was 24 June 2025, reaching 37.8 °C.
What is the coldest day in Sanford?
The coldest day measured in Sanford between 1940 and 2025 was 13 February 1967, at -29.4 °C.
Does it snow in Sanford?
Yes. Sanford gets on average 147.4 cm of snow per year and has around 126 frost days.
Has the climate of Sanford warmed?
Yes: Sanford warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sanford?
The wettest day measured in Sanford between 1940 and 2025 was 11 September 1954, with 119 mm of rain in 24 hours.
What was the windiest day in Sanford?
The windiest day measured in Sanford between 1940 and 2025 was 31 August 1954, with winds reaching 51.2 km/h.
What is the warmest month in Sanford?
The warmest month in Sanford is July (21.4 °C on average); the coldest is January (-5.4 °C).
How much does it rain in Sanford?
Sanford receives on average 1,138 mm of precipitation per year, spread over about 123 rainy days.
Is it sunny in Sanford?
Sanford gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sanford?
The heaviest 24-hour snowfall measured in Sanford between 1940 and 2025 was 18 February 1952, with 37.2 cm.
Are there tropical nights in Sanford?
Yes: Sanford has on average 9 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sanford?
In Sanford, between 1940 and 2025, the highest apparent temperature reached 43.2 °C on 2 August 1975, and the lowest was -34.9 °C on 13 February 1967.
Compare Sanford with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sanford