Sandusky climate — normals and trends
Sandusky (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 1,000 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 (23.6 °C on average) and the coldest is January (-3.3 °C). Rainfall peaks in April.
Sandusky averages 95 frost days, 8 hot days (≥ 30 °C) and 136 rainy days per year.
Sandusky has warmed by +1.7 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 109 to 82 per year over the period.
The hottest day of the period reached 35.5 °C (on 25 June 1988) and the coldest -28.7 °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
SanduskyOhio
- coords
- 41.45°, -82.71°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.4°C
Average daily high
13.5°C
Average daily low
7.6°C
Annual rainfall
1,000mm
Sunshine / day
9.0h
Mean relative humidity
76%
Average peak wind
24.2km/h
Seasonal range
26.9°C
Frost days (< 0 °C)
95 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
74.5 cm
Average feels-like high
11.4 °C
Average feels-like low
4.4 °C
Average peak gust
39.1 km/h
Tropical nights (≥ 20 °C)
52 d/yr
Solar radiation
15.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.32 · 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
35.5 °C
25 June 1988
Coldest day
-28.7 °C
19 January 1994
Wettest day
65 mm
28 June 1957
Windiest day
69.3 km/h
26 January 1978
Strongest gust
106.9 km/h
22 March 1955
Hottest feels-like
40.3 °C
6 July 2012
Coldest feels-like
-37.5 °C
20 January 1985
Snowiest day
27.0 cm
1 December 1974
Sunniest day
15.0 h
18 June 1941
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 | -1.4 °C | -1.1 °C | 50 mm | -23 mm |
| Feb | 0.3 °C | -0.2 °C | 72 mm | +7 mm |
| Mar | 10.0 °C | +4.9 °C | 73 mm | -12 mm |
| Apr | 14.1 °C | +1.9 °C | 121 mm | +19 mm |
| May | 17.2 °C | -1.8 °C | 141 mm | +40 mm |
| Jun | 24.9 °C | +0.4 °C | 88 mm | -8 mm |
| Jul | 27.5 °C | +0.9 °C | 123 mm | +35 mm |
| Aug | 24.5 °C | -1.0 °C | 40 mm | -43 mm |
| Sep | 22.6 °C | +0.8 °C | 55 mm | -18 mm |
| Oct | 16.8 °C | +1.3 °C | 83 mm | +11 mm |
| Nov | 8.6 °C | -0.1 °C | 64 mm | -20 mm |
| Dec | 2.3 °C | -0.2 °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 Sandusky?
Sandusky has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.4 °C and it receives 1,000 mm of precipitation per year.
What is the hottest day ever recorded in Sandusky?
The hottest day measured in Sandusky between 1940 and 2025 was 25 June 1988, reaching 35.5 °C.
What is the coldest day in Sandusky?
The coldest day measured in Sandusky between 1940 and 2025 was 19 January 1994, at -28.7 °C.
Does it snow in Sandusky?
Yes. Sandusky gets on average 74.5 cm of snow per year and has around 95 frost days.
Has the climate of Sandusky warmed?
Yes: Sandusky warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sandusky?
The wettest day measured in Sandusky between 1940 and 2025 was 28 June 1957, with 65 mm of rain in 24 hours.
What was the windiest day in Sandusky?
The windiest day measured in Sandusky between 1940 and 2025 was 26 January 1978, with winds reaching 69.3 km/h.
What is the warmest month in Sandusky?
The warmest month in Sandusky is July (23.6 °C on average); the coldest is January (-3.3 °C).
How much does it rain in Sandusky?
Sandusky receives on average 1,000 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Sandusky?
Sandusky gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sandusky?
The heaviest 24-hour snowfall measured in Sandusky between 1940 and 2025 was 1 December 1974, with 27.0 cm.
Are there tropical nights in Sandusky?
Yes: Sandusky has on average 52 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sandusky?
In Sandusky, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 6 July 2012, and the lowest was -37.5 °C on 20 January 1985.
Compare Sandusky with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sandusky