Winter Dec – Feb
The coldest season, with highs of 35–38°F (2–3°C) and lows down to 25°F (-4°C). It's the driest season, with only about 6.3 in (159 mm) of rain or snow, 23% of the year's total. December – February are cold enough for snow. Comfort scores bottom out in December – February; the season averages 42/100.
Spring Mar – May
Temperatures climb through the season, from 47°F highs in March to 65°F by May. About 6.4 in (163 mm) of rain falls across these months, 24% of the year's total. Nights dip below freezing in March. Comfort peaks here: May ranks with the year's best, and the season averages 72/100.
Summer Jun – Aug
Peak warmth: highs of 73–77°F (23–25°C). It's the wettest season, with about 7.9 in (201 mm) of rain, 29% of the year's total. Lows bottom out around 53°F (12°C). June – August are among the best-scoring months (season average 85/100).
Autumn Sep – Nov
Temperatures slide from 68°F highs in September to 44°F by November. About 6.3 in (161 mm) of rain falls across these months, 24% of the year's total. Lows bottom out around 33°F (0°C). Comfort peaks here: September ranks with the year's best, and the season averages 69/100.