ClimateSearch

Bellevue, Washington

United States · 140k people · 27 m elevation · Northern Hemisphere

Every month in detail

Thirty-year averages for each calendar month.

Monthly climate normals. Values shown as an em dash are missing from the source data.
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Average high46°F (8°C)49°F (9°C)53°F (12°C)58°F (15°C)65°F (18°C)69°F (21°C)75°F (24°C)76°F (25°C)70°F (21°C)60°F (16°C)51°F (11°C)46°F (8°C)
Average low36°F (2°C)36°F (2°C)38°F (3°C)42°F (5°C)47°F (9°C)52°F (11°C)56°F (13°C)56°F (13°C)52°F (11°C)45°F (7°C)40°F (4°C)36°F (2°C)
Dew point35°F (2°C)35°F (2°C)38°F (3°C)41°F (5°C)47°F (8°C)51°F (10°C)55°F (13°C)55°F (13°C)53°F (11°C)46°F (8°C)40°F (4°C)35°F (2°C)
Rainfall5.3 in (135 mm)3.6 in (91 mm)4.4 in (111 mm)3 in (77 mm)1.9 in (48 mm)1.6 in (42 mm)0.8 in (20 mm)1.1 in (29 mm)1.7 in (42 mm)3.9 in (98 mm)5.8 in (148 mm)5.8 in (148 mm)
Rainy days1713151397346131616
Snowfall2.2 in (5.7 cm)2 in (5.1 cm)0.7 in (1.8 cm)0.1 in (0.2 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0 in (0 cm)0.9 in (2.4 cm)2.6 in (6.5 cm)
Sunshine65 h96 h127 h165 h196 h218 h283 h263 h207 h124 h72 h61 h

Scroll the table sideways for all twelve months.

Projected change, 2031–2050

Model projection, not an observation

How this city’s climate may change, measured against the same models’ own 1995–2014 output. Nothing here affects the match score above.

Change in summer afternoon highs

+2.3°F (+1.3°C)

Models range from +1.7°F (+1.0°C) to +3.0°F (+1.7°C)

Days above 90°F (32°C) a year

1 → 2

About 1.8× as many

Warming by month
  • January: +1.0°F (+0.6°C)
  • February: +1.2°F (+0.6°C)
  • March: +1.9°F (+1.0°C)
  • April: +0.9°F (+0.5°C)
  • May: +1.4°F (+0.8°C)
  • June: +2.8°F (+1.6°C)
  • July: +1.9°F (+1.1°C)
  • August: +2.3°F (+1.3°C)
  • September: +2.3°F (+1.3°C)
  • October: +2.3°F (+1.3°C)
  • November: +2.3°F (+1.3°C)
  • December: +1.1°F (+0.6°C)
Scenario
SSP5-8.5 (high emissions)
Models
4 · CMIP6 HighResMIP, downscaled

This is a high-emissions pathway — the upper end of plausible futures, not a central estimate. Changes are measured by each model against its own past output and then applied to the observed record, which cancels each model’s bias but not the genuine uncertainty about how much warming occurs. Where the models disagree widely, the range above is the honest answer.