St. Paul, MN Climate & Monthly Averages
St. Paul has a humid continental climate. July is the hottest month, averaging 83° by day; January is the coldest at 24°.
Winter sets the pace in St. Paul
A 31°C spread between its warmest and coolest months puts St. Paul among the more strongly seasonal places we cover. July averages 83°F (28°C) by day; January averages 24°F (-4°C), with nights at 9°F (-13°C).
July
83° by day 64° at nightJanuary
24° by day 9° at nightThe cold-weather pattern in numbers
January is the coolest month, with highs of 24°F (-4°C) and lows near 9°F (-13°C). July is the warm end of the year, averaging 83°F (28°C) by day and 64°F (18°C) overnight. The gridded 2015-2024 daily record for this location tops out at 98°F (37°C) and bottoms at -35°F (-37°C) - decade extremes, not all-time station records.
Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is August through September.
Sunshine averages 8.6 hours a day over the year, peaking in July at 12.7 hours. Between the average July and the average January lie 31°C, a wider spread than almost anywhere else we cover. Overnight lows average at or below freezing for 5 months, November through March. May is the wettest month at 5.5 inches (138 mm) over 12 days; January is the driest.
More climate facts for St. Paul
- Hottest month: July - highs near 83°F (28°C)
- Coldest month: January - highs near 24°F (-4°C)
- Decade extremes (2015-2024): 98°F (37°C) high · -35°F (-37°C) low
- Wettest month: May (12 rainy days) · Sunniest: July (12.7 h sun/day)
- Climate type: humid continental
- Annual swing: 31°C between the average warmest and coolest month · day to night: 9°C
- Snow: about 22 days a year
- Months with freezing average lows: 5
- Average humidity: 70%
From snow season to the warmest stretch in St. Paul
Spring (March through May)
Through spring, St. Paul runs cool rather than cold: 55°F (13°C) by day, 36°F (2°C) after dark, and rain falls on around 31 of the 90 days, plus about 6 snowy days.
Summer (June through August)
Summer in St. Paul is hot, with daytime highs averaging 81°F (27°C) and nights around 63°F (17°C); rain falls on around 32 of the 90 days. Daylight is generous - around 11.9 hours of sun a day.
Fall (September through November)
Through fall, St. Paul stays on the cool side of mild: 58°F (14°C) by day, 43°F (6°C) after dark, and expect showers on roughly 26 days across the season, plus about 3 snowy days.
Winter (December through February)
Winter in St. Paul runs to hard cold, with daytime highs averaging 27°F (-3°C) and nights around 12°F (-11°C); expect showers on roughly 19 days across the season, plus about 13 snowy days. Wind sharpens cold like this considerably; pair the forecast winds with the wind speed converter to judge exposed conditions.
The coldest and warmest values in the dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.
Planning around winter in St. Paul
The easier weather window
Aim for June to September if you get the choice: these are the warmest and brightest weeks of the year, and highs average 79°F (26°C) against roughly 10 wet days a month. For the same question asked the other way round, see where else is warm in June.
Cold-weather packing
Pack for St. Paul with light clothing for the warm months, a heavy insulated coat, hat and gloves for winter and a compact umbrella or rain shell. Even in July, lows of 64°F (18°C) make an extra layer worth the space.
Monthly highs, lows and seasonal change
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 24° | 9° | 5 | 1.0 in | 5.5 h/day | 9.1 h | 16% | 77% |
| February | 28° | 9° | 6 | 1.2 in | 7.6 h/day | 10.3 h | 19% | 72% |
| March | 43° | 24° | 8 | 2.2 in | 8.0 h/day | 11.8 h | 26% | 66% |
| April | 54° | 35° | 11 | 3.4 in | 8.5 h/day | 13.4 h | 36% | 65% |
| May | 69° | 49° | 12 | 5.5 in | 10.3 h/day | 14.8 h | 39% | 64% |
| June | 80° | 61° | 10 | 4.6 in | 12.1 h/day | 15.6 h | 35% | 65% |
| July | 83° | 64° | 10 | 4.2 in | 12.7 h/day | 15.3 h | 33% | 70% |
| August | 80° | 63° | 11 | 4.8 in | 10.9 h/day | 14.1 h | 36% | 72% |
| September | 74° | 58° | 9 | 3.6 in | 9.5 h/day | 12.5 h | 29% | 71% |
| October | 58° | 43° | 9 | 3.6 in | 7.2 h/day | 10.9 h | 30% | 69% |
| November | 43° | 29° | 8 | 2.1 in | 5.8 h/day | 9.5 h | 27% | 71% |
| December | 30° | 16° | 8 | 1.9 in | 4.6 h/day | 8.8 h | 26% | 77% |
The route from winter to summer, month by month
Each card shows the average high and low. The bar places that month between St. Paul's coldest night and warmest afternoon.
January
- Rain
- 5 days
- Sunshine
- 5.5 h
- Daylight
- 9.1 h
- Snow
- 4 days
February
- Rain
- 6 days
- Sunshine
- 7.6 h
- Daylight
- 10.3 h
- Snow
- 4 days
March
- Rain
- 8 days
- Sunshine
- 8.0 h
- Daylight
- 11.8 h
- Snow
- 4 days
April
- Rain
- 11 days
- Sunshine
- 8.5 h
- Daylight
- 13.4 h
- Snow
- 2 days
May
- Rain
- 12 days
- Sunshine
- 10.3 h
- Daylight
- 14.8 h
June
- Rain
- 10 days
- Sunshine
- 12.1 h
- Daylight
- 15.6 h
July
- Rain
- 10 days
- Sunshine
- 12.7 h
- Daylight
- 15.3 h
August
- Rain
- 11 days
- Sunshine
- 10.9 h
- Daylight
- 14.1 h
September
- Rain
- 9 days
- Sunshine
- 9.5 h
- Daylight
- 12.5 h
October
- Rain
- 9 days
- Sunshine
- 7.2 h
- Daylight
- 10.9 h
November
- Rain
- 8 days
- Sunshine
- 5.8 h
- Daylight
- 9.5 h
- Snow
- 2 days
December
- Rain
- 8 days
- Sunshine
- 4.6 h
- Daylight
- 8.8 h
- Snow
- 5 days
Looking for warmer alternatives? Browse warm places by month, or compare St. Paul's coolest part of the year: January, February, December.
Where St. Paul sits among other climates
- St. Paul averages 47°F (8°C) across the year - cooler than all but 4% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.