Knivsta climate — normals and trends
Knivsta (Sweden) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.1 °C and it receives 568 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 (17.1 °C on average) and the coldest is January (-3.7 °C). Rainfall peaks in August.
Knivsta averages 136 frost days, 1 hot days (≥ 30 °C) and 117 rainy days per year.
Knivsta 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 148 to 124 per year over the period.
The hottest day of the period reached 34.2 °C (on 21 July 2022) and the coldest -30.0 °C (on 17 February 1970).
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
KnivstaUppsala County
- coords
- 59.73°, 17.79°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.1°C
Average daily high
9.5°C
Average daily low
2.4°C
Annual rainfall
568mm
Sunshine / day
7.5h
Mean relative humidity
80%
Average peak wind
16.5km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
136 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
117 d/yr
Annual snowfall
84.3 cm
Average feels-like high
6.5 °C
Average feels-like low
-0.9 °C
Average peak gust
36.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.27 · 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
34.2 °C
21 July 2022
Coldest day
-30.0 °C
17 February 1970
Wettest day
50 mm
22 September 2014
Windiest day
45.1 km/h
2 November 1969
Strongest gust
100.8 km/h
22 February 2020
Hottest feels-like
34.6 °C
7 August 1975
Coldest feels-like
-35.0 °C
17 February 1970
Snowiest day
17.4 cm
28 April 1995
Sunniest day
18.0 h
3 July 1941
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 1.0 °C | +2.5 °C | 62 mm | +25 mm |
| Feb | 1.3 °C | +2.2 °C | 9 mm | -19 mm |
| Mar | 8.0 °C | +4.8 °C | 7 mm | -22 mm |
| Apr | 11.8 °C | +2.8 °C | 23 mm | -14 mm |
| May | 13.7 °C | -1.2 °C | 35 mm | -8 mm |
| Jun | 19.0 °C | -0.3 °C | 83 mm | +25 mm |
| Jul | 23.6 °C | +2.3 °C | 105 mm | +32 mm |
| Aug | 19.5 °C | -0.6 °C | 77 mm | +2 mm |
| Sep | 18.1 °C | +2.8 °C | 65 mm | +13 mm |
| Oct | 10.6 °C | +1.1 °C | 51 mm | +3 mm |
| Nov | 5.0 °C | +1.4 °C | 28 mm | -18 mm |
| Dec | 4.5 °C | +4.1 °C | 40 mm | -2 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 Knivsta?
Knivsta has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.1 °C and it receives 568 mm of precipitation per year.
What is the hottest day ever recorded in Knivsta?
The hottest day measured in Knivsta between 1940 and 2025 was 21 July 2022, reaching 34.2 °C.
What is the coldest day in Knivsta?
The coldest day measured in Knivsta between 1940 and 2025 was 17 February 1970, at -30.0 °C.
Does it snow in Knivsta?
Yes. Knivsta gets on average 84.3 cm of snow per year and has around 136 frost days.
Has the climate of Knivsta warmed?
Yes: Knivsta warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Knivsta?
The wettest day measured in Knivsta between 1940 and 2025 was 22 September 2014, with 50 mm of rain in 24 hours.
What was the windiest day in Knivsta?
The windiest day measured in Knivsta between 1940 and 2025 was 2 November 1969, with winds reaching 45.1 km/h.
What is the warmest month in Knivsta?
The warmest month in Knivsta is July (17.1 °C on average); the coldest is January (-3.7 °C).
How much does it rain in Knivsta?
Knivsta receives on average 568 mm of precipitation per year, spread over about 117 rainy days.
Is it sunny in Knivsta?
Knivsta gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Knivsta?
The heaviest 24-hour snowfall measured in Knivsta between 1940 and 2025 was 28 April 1995, with 17.4 cm.
Are there tropical nights in Knivsta?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Knivsta.
What was the most extreme apparent temperature in Knivsta?
In Knivsta, between 1940 and 2025, the highest apparent temperature reached 34.6 °C on 7 August 1975, and the lowest was -35.0 °C on 17 February 1970.
Compare Knivsta with another city
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Nearby cities
The climate around Knivsta