Northfield climate — normals and trends
Northfield (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 7.3 °C and it receives 854 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 (22.4 °C on average) and the coldest is January (-10.0 °C). Rainfall peaks in June.
Northfield averages 147 frost days, 18 hot days (≥ 30 °C) and 108 rainy days per year.
Northfield has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 156 to 138 per year over the period.
The hottest day of the period reached 39.1 °C (on 31 July 1988) and the coldest -36.1 °C (on 31 January 2019).
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
NorthfieldMinnesota
- coords
- 44.46°, -93.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.3°C
Average daily high
12.0°C
Average daily low
2.7°C
Annual rainfall
854mm
Sunshine / day
8.7h
Mean relative humidity
71%
Average peak wind
19.5km/h
Seasonal range
32.4°C
Frost days (< 0 °C)
147 d/yr
Hot days (≥ 30 °C)
18 d/yr
Rainy days (≥ 1 mm)
108 d/yr
Annual snowfall
93.9 cm
Average feels-like high
9.5 °C
Average feels-like low
-0.7 °C
Average peak gust
39.1 km/h
Tropical nights (≥ 20 °C)
17 d/yr
Solar radiation
14.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.32 · 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
39.1 °C
31 July 1988
Coldest day
-36.1 °C
31 January 2019
Wettest day
100 mm
10 August 1994
Windiest day
66.9 km/h
10 October 1949
Strongest gust
117.4 km/h
10 October 1949
Hottest feels-like
43.6 °C
6 July 1948
Coldest feels-like
-42.0 °C
2 February 1996
Snowiest day
27.7 cm
22 January 2018
Sunniest day
15.0 h
18 June 2021
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 | -4.3 °C | +1.5 °C | 5 mm | -22 mm |
| Feb | -3.5 °C | -0.4 °C | 13 mm | -14 mm |
| Mar | 9.6 °C | +5.8 °C | 97 mm | +38 mm |
| Apr | 13.7 °C | +1.0 °C | 96 mm | +10 mm |
| May | 20.5 °C | +0.8 °C | 76 mm | -35 mm |
| Jun | 25.0 °C | +0.1 °C | 186 mm | +68 mm |
| Jul | 27.8 °C | +0.4 °C | 95 mm | +1 mm |
| Aug | 25.5 °C | -0.5 °C | 104 mm | +1 mm |
| Sep | 23.6 °C | +2.2 °C | 75 mm | -11 mm |
| Oct | 16.6 °C | +2.0 °C | 43 mm | -18 mm |
| Nov | 7.4 °C | +2.6 °C | 42 mm | -7 mm |
| Dec | -2.7 °C | +0.3 °C | 39 mm | +5 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 Northfield?
Northfield has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 7.3 °C and it receives 854 mm of precipitation per year.
What is the hottest day ever recorded in Northfield?
The hottest day measured in Northfield between 1940 and 2025 was 31 July 1988, reaching 39.1 °C.
What is the coldest day in Northfield?
The coldest day measured in Northfield between 1940 and 2025 was 31 January 2019, at -36.1 °C.
Does it snow in Northfield?
Yes. Northfield gets on average 93.9 cm of snow per year and has around 147 frost days.
Has the climate of Northfield warmed?
Yes: Northfield warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Northfield?
The wettest day measured in Northfield between 1940 and 2025 was 10 August 1994, with 100 mm of rain in 24 hours.
What was the windiest day in Northfield?
The windiest day measured in Northfield between 1940 and 2025 was 10 October 1949, with winds reaching 66.9 km/h.
What is the warmest month in Northfield?
The warmest month in Northfield is July (22.4 °C on average); the coldest is January (-10.0 °C).
How much does it rain in Northfield?
Northfield receives on average 854 mm of precipitation per year, spread over about 108 rainy days.
Is it sunny in Northfield?
Northfield 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 Northfield?
The heaviest 24-hour snowfall measured in Northfield between 1940 and 2025 was 22 January 2018, with 27.7 cm.
Are there tropical nights in Northfield?
Yes: Northfield has on average 17 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Northfield?
In Northfield, between 1940 and 2025, the highest apparent temperature reached 43.6 °C on 6 July 1948, and the lowest was -42.0 °C on 2 February 1996.
Compare Northfield with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Northfield