Fountain climate — normals and trends
Fountain (United States) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.6 °C and it receives 525 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 (20.3 °C on average) and the coldest is January (-4.0 °C). Rainfall peaks in May.
Fountain averages 175 frost days, 19 hot days (≥ 30 °C) and 100 rainy days per year.
Fountain has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 185 to 165 per year over the period.
The hottest day of the period reached 36.9 °C (on 27 June 2018) and the coldest -40.6 °C (on 12 January 1963).
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
FountainColorado
- coords
- 38.68°, -104.70°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.6°C
Average daily high
15.1°C
Average daily low
0.7°C
Annual rainfall
525mm
Sunshine / day
10.8h
Mean relative humidity
55%
Average peak wind
14.7km/h
Seasonal range
24.3°C
Frost days (< 0 °C)
175 d/yr
Hot days (≥ 30 °C)
19 d/yr
Rainy days (≥ 1 mm)
100 d/yr
Annual snowfall
106.0 cm
Average feels-like high
12.3 °C
Average feels-like low
-2.8 °C
Average peak gust
35.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.46 · 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
36.9 °C
27 June 2018
Coldest day
-40.6 °C
12 January 1963
Wettest day
111 mm
23 July 1991
Windiest day
53.6 km/h
13 March 2019
Strongest gust
112.7 km/h
13 March 2019
Hottest feels-like
34.7 °C
8 August 1969
Coldest feels-like
-46.1 °C
12 January 1963
Snowiest day
39.8 cm
2 April 1957
Sunniest day
14.1 h
29 June 1955
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 | 0.5 °C | -3.5 °C | 33 mm | +17 mm |
| Feb | 5.9 °C | +0.5 °C | 14 mm | -6 mm |
| Mar | 14.0 °C | +5.2 °C | 18 mm | -23 mm |
| Apr | 16.0 °C | +2.5 °C | 27 mm | -34 mm |
| May | 18.7 °C | +0.1 °C | 114 mm | +35 mm |
| Jun | 25.6 °C | +0.7 °C | 78 mm | +23 mm |
| Jul | 28.9 °C | +1.3 °C | 63 mm | -10 mm |
| Aug | 27.5 °C | +1.2 °C | 107 mm | +37 mm |
| Sep | 23.1 °C | +0.4 °C | 36 mm | -3 mm |
| Oct | 18.8 °C | +2.4 °C | 14 mm | -18 mm |
| Nov | 13.5 °C | +4.6 °C | 21 mm | -1 mm |
| Dec | 10.2 °C | +5.6 °C | 18 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 Fountain?
Fountain has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.6 °C and it receives 525 mm of precipitation per year.
What is the hottest day ever recorded in Fountain?
The hottest day measured in Fountain between 1940 and 2025 was 27 June 2018, reaching 36.9 °C.
What is the coldest day in Fountain?
The coldest day measured in Fountain between 1940 and 2025 was 12 January 1963, at -40.6 °C.
Does it snow in Fountain?
Yes. Fountain gets on average 106.0 cm of snow per year and has around 175 frost days.
Has the climate of Fountain warmed?
Yes: Fountain warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Fountain?
The wettest day measured in Fountain between 1940 and 2025 was 23 July 1991, with 111 mm of rain in 24 hours.
What was the windiest day in Fountain?
The windiest day measured in Fountain between 1940 and 2025 was 13 March 2019, with winds reaching 53.6 km/h.
What is the warmest month in Fountain?
The warmest month in Fountain is July (20.3 °C on average); the coldest is January (-4.0 °C).
How much does it rain in Fountain?
Fountain receives on average 525 mm of precipitation per year, spread over about 100 rainy days.
Is it sunny in Fountain?
Fountain gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Fountain?
The heaviest 24-hour snowfall measured in Fountain between 1940 and 2025 was 2 April 1957, with 39.8 cm.
Are there tropical nights in Fountain?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Fountain.
What was the most extreme apparent temperature in Fountain?
In Fountain, between 1940 and 2025, the highest apparent temperature reached 34.7 °C on 8 August 1969, and the lowest was -46.1 °C on 12 January 1963.
Compare Fountain with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Fountain