Plymouth weather by month
Average highs run from 24°F in January to 83°F in July, and January nights average 9°F. It gets 32 inches of rain and melted snow a year and 51 inches of snow. Nights drop below freezing about 147 times a year. The most comfortable months are May and July to September.
Best time to visit Plymouth
For comfortable weather, go in May and July to September. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 24°F | 9°F | 0.9 in | 11.0 in | 3 | 0 | 31 | very cold |
| February | 29°F | 13°F | 0.9 in | 9.5 in | 3 | 0 | 27 | very cold |
| March | 42°F | 25°F | 1.7 in | 8.2 in | 5 | 0 | 24 | cold |
| April | 57°F | 38°F | 2.9 in | 3.5 in | 6 | 0 | 9 | cool |
| May | 69°F | 50°F | 3.9 in | 0.0 in | 8 | 1 | 1 | mild |
| June | 79°F | 60°F | 4.6 in | 0.0 in | 8 | 3 | 0 | warm |
| July | 83°F | 65°F | 4.1 in | 0.0 in | 7 | 5 | 0 | warm |
| August | 81°F | 63°F | 4.3 in | 0.0 in | 6 | 2 | 0 | warm |
| September | 73°F | 54°F | 3.0 in | 0.0 in | 5 | 1 | 0 | mild |
| October | 58°F | 41°F | 2.6 in | 0.8 in | 5 | 0 | 6 | cool |
| November | 42°F | 28°F | 1.6 in | 6.8 in | 4 | 0 | 21 | cold |
| December | 29°F | 15°F | 1.2 in | 11.4 in | 3 | 0 | 30 | very cold |
| Year | 55°F avg | 38°F avg | 31.6 in | 51.2 in | 62 | 13 | 147 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Minneapolis/St Paul Airport, MN (USW00014922), 14.9 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Plymouth
The shortest day is December 21, with 8h 45m of daylight; the longest is June 21, with 15h 37m. The earliest sunset comes around December 7 (4:31 pm) and the latest around June 21 (9:04 pm). The sun sets after 8 pm on 133 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:48 am | 4:58 pm | 9h 10m |
| February | 7:14 am | 5:41 pm | 10h 27m |
| March | 7:26 am | 7:19 pm | 11h 53m |
| April | 6:29 am | 7:59 pm | 13h 30m |
| May | 5:44 am | 8:36 pm | 14h 51m |
| June | 5:26 am | 9:02 pm | 15h 36m |
| July | 5:41 am | 8:57 pm | 15h 16m |
| August | 6:15 am | 8:19 pm | 14h 04m |
| September | 6:52 am | 7:24 pm | 12h 31m |
| October | 7:29 am | 6:28 pm | 10h 58m |
| November | 7:12 am | 4:44 pm | 9h 32m |
| December | 7:45 am | 4:32 pm | 8h 47m |
Calculated for 2026 at the center of Plymouth with NOAA's solar equations, in local clock time (Central Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Plymouth getting warmer?
The last 10 years averaged 2.7°F warmer than the 20th century. See the climate stripes for Plymouth.Frequently asked questions
What is the warmest month in Plymouth?
July is the warmest month, with an average high of 83°F and an average low of 65°F (NOAA 1991-2020 normals).
What is the coldest month in Plymouth?
January is the coldest, with average lows of 9°F and highs of 24°F.
What is the rainiest month in Plymouth?
June gets the most precipitation, 4.6 inches on average. February is the driest at 0.9 inches.
Does it snow in Plymouth?
Yes. Plymouth averages 51 inches of snow a year.
When is the best time to visit Plymouth?
For comfortable weather, May and July to September. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Plymouth?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Plymouth profile.
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