St. Paul, MN Climate & Monthly Averages
The climate of 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).
Climate quick facts
- 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%
Temperatures through the year
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.
Rain, sun and snow
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.
How St. Paul compares
- St. Paul averages 47°F (8°C) across the year - cooler than all but 4% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| 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% |
St. Paul month by month
Average high and low for each month, with the bar showing where it sits in St. Paul's year (left is the coldest night, right is the 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
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons 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.
Climate questions, answered
Is St. Paul hot in summer?
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Best time to visit St. Paul
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.
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.
St. Paul temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.