Salem weather by month
Warmest month
August
87°F (30°C) average high
Coolest month
January
35°F (2°C) average low
Wettest month
December
5 in (126 mm) of rain
Driest month
July
0.3 in (7 mm) of rain
Average temperature and rainfall in Salem by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 48°F | 35°F | 18°F / 60°F | 3.8 in | 84% | 6 mph |
| February | 50°F | 38°F | 20°F / 61°F | 3.2 in | 82% | 7 mph |
| March | 54°F | 40°F | 26°F / 73°F | 3.5 in | 78% | 7 mph |
| April | 61°F | 42°F | 31°F / 81°F | 2.8 in | 72% | 6 mph |
| May | 70°F | 49°F | 40°F / 91°F | 1.8 in | 70% | 6 mph |
| June | 77°F | 52°F | 42°F / 99°F | 1.4 in | 63% | 6 mph |
| July | 86°F | 55°F | 49°F / 98°F | 0.3 in | 57% | 6 mph |
| August | 87°F | 57°F | 46°F / 104°F | 0.6 in | 60% | 6 mph |
| September | 78°F | 54°F | 46°F / 98°F | 2.3 in | 67% | 6 mph |
| October | 66°F | 46°F | 34°F / 88°F | 3.2 in | 77% | 6 mph |
| November | 55°F | 44°F | 20°F / 68°F | 4 in | 86% | 7 mph |
| December | 46°F | 37°F | 16°F / 62°F | 5 in | 87% | 6 mph |
Frost and snow-likely months in Salem
Nights in Salem average 36°F (2°C) or below in 1 month (January). No month combines freezing average lows with 0.4 in (10 mm) or more of precipitation, so snow is uncommon. The coldest month is January with an average low of 35°F (2°C) and a record low of 18°F (-8°C).
- January: average low 35°F (2°C), record low 18°F (-8°C), 3.8 in (97 mm) of precipitation
These records carry temperature and precipitation, not snowfall totals.
Best time to visit Salem
The most comfortable time to visit Salem is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around December, totalling about 31.8 in (808 mm) a year.
Travellers who prefer heat should aim for August, when highs average 87°F (30°C). December is the month to avoid if rain would spoil your plans — it averages 5 in (126 mm), roughly 17× the rainfall of the driest month (July).
Salem climate: your questions
Will it snow in Salem this year?
Rarely: nights dip to 36°F (2°C) or below only in January, and the coldest month, January, averages a low of 35°F (2°C) (record low 18°F (-8°C)), so snow is uncommon. Our records carry temperature and precipitation, not snowfall totals. What is falling now: Salem weather today.
Will it snow in Salem this winter?
Salem's winter months average lows of 37°F (3°C) in December, 35°F (2°C) in January and 38°F (3°C) in February, with about 12 in (304 mm) of precipitation across the three; 0 of them sit at or below 32°F (0°C), so snow is unlikely. The records hold no snowfall totals. The next 15 days: Salem 10-day forecast.
Which months are best for visiting Salem?
May to June and September are the most comfortable months in Salem, with highs near 75°F (24°C). August is the warmest month, averaging 87°F (30°C) by day; December is the wettest, with 5 in (126 mm); and January is the coolest, with lows near 35°F (2°C). What it is doing today: Salem weather today.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Salem forecast for what is happening now.
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