Scranton climate — normals and trends
Scranton (United States) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.9 °C and it receives 1,026 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 (21.3 °C on average) and the coldest is January (-4.1 °C). Rainfall peaks in May.
Scranton averages 125 frost days, 10 hot days (≥ 30 °C) and 131 rainy days per year.
Scranton has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 138 to 112 per year over the period.
The hottest day of the period reached 36.6 °C (on 3 July 1966) and the coldest -29.3 °C (on 19 January 1997).
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
ScrantonPennsylvania
- coords
- 41.41°, -75.66°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.9°C
Average daily high
13.6°C
Average daily low
4.4°C
Annual rainfall
1,026mm
Sunshine / day
8.4h
Mean relative humidity
71%
Average peak wind
16.0km/h
Seasonal range
25.4°C
Frost days (< 0 °C)
125 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
131 d/yr
Annual snowfall
111.4 cm
Average feels-like high
11.5 °C
Average feels-like low
1.5 °C
Average peak gust
40.5 km/h
Tropical nights (≥ 20 °C)
9 d/yr
Solar radiation
14.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.50 · 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
36.6 °C
3 July 1966
Coldest day
-29.3 °C
19 January 1997
Wettest day
114 mm
16 September 1999
Windiest day
48.8 km/h
15 October 1954
Strongest gust
146.9 km/h
25 November 1950
Hottest feels-like
41.0 °C
26 August 1948
Coldest feels-like
-35.0 °C
19 January 1997
Snowiest day
34.5 cm
25 November 1971
Sunniest day
14.4 h
17 June 2021
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 | -1.6 °C | -1.2 °C | 27 mm | -46 mm |
| Feb | 1.4 °C | +0.1 °C | 70 mm | +1 mm |
| Mar | 11.6 °C | +5.2 °C | 61 mm | -28 mm |
| Apr | 14.9 °C | +1.5 °C | 85 mm | -8 mm |
| May | 18.4 °C | -0.9 °C | 185 mm | +86 mm |
| Jun | 25.2 °C | +1.4 °C | 94 mm | +3 mm |
| Jul | 28.1 °C | +1.7 °C | 85 mm | -3 mm |
| Aug | 25.7 °C | +0.3 °C | 38 mm | -51 mm |
| Sep | 24.0 °C | +2.6 °C | 47 mm | -40 mm |
| Oct | 16.1 °C | +0.8 °C | 113 mm | +31 mm |
| Nov | 8.2 °C | -0.1 °C | 41 mm | -43 mm |
| Dec | 0.3 °C | -1.7 °C | 75 mm | -7 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 Scranton?
Scranton has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.9 °C and it receives 1,026 mm of precipitation per year.
What is the hottest day ever recorded in Scranton?
The hottest day measured in Scranton between 1940 and 2025 was 3 July 1966, reaching 36.6 °C.
What is the coldest day in Scranton?
The coldest day measured in Scranton between 1940 and 2025 was 19 January 1997, at -29.3 °C.
Does it snow in Scranton?
Yes. Scranton gets on average 111.4 cm of snow per year and has around 125 frost days.
Has the climate of Scranton warmed?
Yes: Scranton warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Scranton?
The wettest day measured in Scranton between 1940 and 2025 was 16 September 1999, with 114 mm of rain in 24 hours.
What was the windiest day in Scranton?
The windiest day measured in Scranton between 1940 and 2025 was 15 October 1954, with winds reaching 48.8 km/h.
What is the warmest month in Scranton?
The warmest month in Scranton is July (21.3 °C on average); the coldest is January (-4.1 °C).
How much does it rain in Scranton?
Scranton receives on average 1,026 mm of precipitation per year, spread over about 131 rainy days.
Is it sunny in Scranton?
Scranton gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Scranton?
The heaviest 24-hour snowfall measured in Scranton between 1940 and 2025 was 25 November 1971, with 34.5 cm.
Are there tropical nights in Scranton?
Yes: Scranton has on average 9 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Scranton?
In Scranton, between 1940 and 2025, the highest apparent temperature reached 41.0 °C on 26 August 1948, and the lowest was -35.0 °C on 19 January 1997.
Compare Scranton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Scranton