Climate averages 1991–2020
Bellingham weather
in April.
A cool, wet month: the 7th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Bellingham: daytime highs average 12.5°C and nights cool to about 4.7°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 122 mm of rain on roughly 15 days, which makes April a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 40 min on an average April day.
The nearest other city in this atlas is Abbotsford (37 km away). In April its highs average 12.5°C, about as warm as Bellingham, with 160 mm of rain.
Among the 498 cities listed in the United States, Bellingham ranks joint 471st of 498 for the warmest April highs and joint 471st of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Bellingham is 6.9°C cooler than that mean.
From April to May, average highs rise by 3.4°C to 15.9°C, and monthly rainfall falls from 122 mm to 86 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bellingham climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.4°C1.2°C | 1.2°C | 213 | 18.6 | 8.89 h |
| February | 7.8°C1.2°C | 1.2°C | 139 | 15.5 | 10.110 h |
| March | 9.8°C2.6°C | 2.6°C | 171 | 18.9 | 11.912 h |
| April, selected | 12.5°C4.7°C | 4.7°C | 122 | 15.2 | 13.714 h |
| May | 15.9°C8.1°C | 8.1°C | 86 | 11.3 | 15.215 h |
| June | 17.9°C11.1°C | 11.1°C | 64 | 9.4 | 16.116 h |
| July | 21.2°C13.8°C | 13.8°C | 32 | 5.1 | 15.716 h |
| August | 21.7°C14.2°C | 14.2°C | 46 | 5.3 | 14.414 h |
| September | 19.0°C11.8°C | 11.8°C | 81 | 9.1 | 12.613 h |
| October | 13.6°C7.7°C | 7.7°C | 162 | 14.7 | 10.911 h |
| November | 8.7°C3.8°C | 3.8°C | 240 | 18.8 | 9.29 h |
| December | 5.8°C1.3°C | 1.3°C | 206 | 18.3 | 8.48 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Abbotsford in AprilCanada · 37 kmHigh 12.5°C · Low 2.5°C · 160 mm rain
- Langley in AprilCanada · 40 kmHigh 13.1°C · Low 3.9°C · 129 mm rain
- Surrey in AprilCanada · 46 kmHigh 12.7°C · Low 3.8°C · 129 mm rain
- Maple Ridge in AprilCanada · 52 kmHigh 12.8°C · Low 3.2°C · 224 mm rain
- Delta in AprilCanada · 55 kmHigh 12.8°C · Low 5.4°C · 109 mm rain
- New Westminster in AprilCanada · 59 kmHigh 12.6°C · Low 3.5°C · 175 mm rain
- Chilliwack in AprilCanada · 60 kmHigh 12.5°C · Low 4.1°C · 172 mm rain
- Coquitlam in AprilCanada · 62 kmHigh 13.0°C · Low 3.9°C · 198 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bellingham) is explained once on the Bellingham year overview and on the Sources, method and limits page.