Medford climate — normals and trends
Medford (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 982 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 (20.3 °C on average) and the coldest is January (2.6 °C). Rainfall peaks in December.
Medford averages 79 frost days, 31 hot days (≥ 30 °C) and 118 rainy days per year.
Medford has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 97 to 61 per year over the period.
The hottest day of the period reached 40.9 °C (on 8 August 1981) and the coldest -24.9 °C (on 21 December 1990).
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
MedfordOregon
- coords
- 42.33°, -122.88°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.5°C
Average daily high
17.0°C
Average daily low
4.8°C
Annual rainfall
982mm
Sunshine / day
9.9h
Mean relative humidity
68%
Average peak wind
10.3km/h
Seasonal range
17.7°C
Frost days (< 0 °C)
79 d/yr
Hot days (≥ 30 °C)
31 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
105.6 cm
Average feels-like high
15.6 °C
Average feels-like low
2.4 °C
Average peak gust
34.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
16.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.53 · 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
40.9 °C
8 August 1981
Coldest day
-24.9 °C
21 December 1990
Wettest day
117 mm
29 October 1950
Windiest day
25.3 km/h
12 October 1962
Strongest gust
123.5 km/h
4 January 2008
Hottest feels-like
43.4 °C
28 June 2021
Coldest feels-like
-30.5 °C
21 December 1990
Snowiest day
37.2 cm
14 February 1959
Sunniest day
14.8 h
15 June 1940
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 | 9.7 °C | +2.2 °C | 87 mm | -51 mm |
| Feb | 8.6 °C | -1.1 °C | 176 mm | +67 mm |
| Mar | 12.6 °C | +0.8 °C | 194 mm | +71 mm |
| Apr | 17.3 °C | +2.3 °C | 62 mm | -28 mm |
| May | 20.8 °C | +1.7 °C | 30 mm | -45 mm |
| Jun | 25.8 °C | +2.5 °C | 11 mm | -29 mm |
| Jul | 29.6 °C | +1.1 °C | 4 mm | -8 mm |
| Aug | 29.5 °C | +1.6 °C | 6 mm | -13 mm |
| Sep | 25.3 °C | +0.6 °C | 62 mm | +32 mm |
| Oct | 16.4 °C | -1.8 °C | 95 mm | +23 mm |
| Nov | 13.5 °C | +2.5 °C | 84 mm | -41 mm |
| Dec | 10.0 °C | +2.7 °C | 168 mm | +16 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 Medford?
Medford has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 982 mm of precipitation per year.
What is the hottest day ever recorded in Medford?
The hottest day measured in Medford between 1940 and 2025 was 8 August 1981, reaching 40.9 °C.
What is the coldest day in Medford?
The coldest day measured in Medford between 1940 and 2025 was 21 December 1990, at -24.9 °C.
Does it snow in Medford?
Yes. Medford gets on average 105.6 cm of snow per year and has around 79 frost days.
Has the climate of Medford warmed?
Yes: Medford warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Medford?
The wettest day measured in Medford between 1940 and 2025 was 29 October 1950, with 117 mm of rain in 24 hours.
What was the windiest day in Medford?
The windiest day measured in Medford between 1940 and 2025 was 12 October 1962, with winds reaching 25.3 km/h.
What is the warmest month in Medford?
The warmest month in Medford is July (20.3 °C on average); the coldest is January (2.6 °C).
How much does it rain in Medford?
Medford receives on average 982 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Medford?
Medford gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
What is the biggest single-day snowfall in Medford?
The heaviest 24-hour snowfall measured in Medford between 1940 and 2025 was 14 February 1959, with 37.2 cm.
Are there tropical nights in Medford?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Medford.
What was the most extreme apparent temperature in Medford?
In Medford, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 28 June 2021, and the lowest was -30.5 °C on 21 December 1990.
Compare Medford with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Medford