Massillon climate — normals and trends
Massillon (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.4 °C and it receives 1,048 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 (22.6 °C on average) and the coldest is January (-2.6 °C). Rainfall peaks in May.
Massillon averages 108 frost days, 20 hot days (≥ 30 °C) and 139 rainy days per year.
Massillon has warmed by +1.9 °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 121 to 95 per year over the period.
The hottest day of the period reached 38.7 °C (on 16 July 1988) and the coldest -30.5 °C (on 19 January 1994).
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
MassillonOhio
- coords
- 40.80°, -81.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.4°C
Average daily high
15.2°C
Average daily low
6.0°C
Annual rainfall
1,048mm
Sunshine / day
8.5h
Mean relative humidity
70%
Average peak wind
16.8km/h
Seasonal range
25.2°C
Frost days (< 0 °C)
108 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
75.3 cm
Average feels-like high
13.4 °C
Average feels-like low
3.3 °C
Average peak gust
38.4 km/h
Tropical nights (≥ 20 °C)
21 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
38.7 °C
16 July 1988
Coldest day
-30.5 °C
19 January 1994
Wettest day
119 mm
14 September 1979
Windiest day
45.8 km/h
9 March 1942
Strongest gust
106.2 km/h
14 January 1940
Hottest feels-like
42.4 °C
15 July 1995
Coldest feels-like
-36.5 °C
19 January 1994
Snowiest day
21.9 cm
25 November 1950
Sunniest day
14.9 h
25 June 2025
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 | -1.7 °C | -3.0 °C | 46 mm | -33 mm |
| Feb | 2.6 °C | -0.6 °C | 101 mm | +28 mm |
| Mar | 13.6 °C | +4.9 °C | 71 mm | -29 mm |
| Apr | 17.0 °C | +1.7 °C | 121 mm | +17 mm |
| May | 19.7 °C | -1.2 °C | 158 mm | +52 mm |
| Jun | 27.5 °C | +1.8 °C | 124 mm | +25 mm |
| Jul | 29.2 °C | +1.5 °C | 92 mm | -0 mm |
| Aug | 26.8 °C | 0.0 °C | 33 mm | -49 mm |
| Sep | 25.9 °C | +2.7 °C | 57 mm | -22 mm |
| Oct | 17.9 °C | +1.0 °C | 98 mm | +27 mm |
| Nov | 9.3 °C | -0.3 °C | 53 mm | -31 mm |
| Dec | 3.1 °C | -0.4 °C | 70 mm | -10 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 Massillon?
Massillon has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.4 °C and it receives 1,048 mm of precipitation per year.
What is the hottest day ever recorded in Massillon?
The hottest day measured in Massillon between 1940 and 2025 was 16 July 1988, reaching 38.7 °C.
What is the coldest day in Massillon?
The coldest day measured in Massillon between 1940 and 2025 was 19 January 1994, at -30.5 °C.
Does it snow in Massillon?
Yes. Massillon gets on average 75.3 cm of snow per year and has around 108 frost days.
Has the climate of Massillon warmed?
Yes: Massillon warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Massillon?
The wettest day measured in Massillon between 1940 and 2025 was 14 September 1979, with 119 mm of rain in 24 hours.
What was the windiest day in Massillon?
The windiest day measured in Massillon between 1940 and 2025 was 9 March 1942, with winds reaching 45.8 km/h.
What is the warmest month in Massillon?
The warmest month in Massillon is July (22.6 °C on average); the coldest is January (-2.6 °C).
How much does it rain in Massillon?
Massillon receives on average 1,048 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Massillon?
Massillon gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Massillon?
The heaviest 24-hour snowfall measured in Massillon between 1940 and 2025 was 25 November 1950, with 21.9 cm.
Are there tropical nights in Massillon?
Yes: Massillon has on average 21 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Massillon?
In Massillon, between 1940 and 2025, the highest apparent temperature reached 42.4 °C on 15 July 1995, and the lowest was -36.5 °C on 19 January 1994.
Compare Massillon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Massillon