Bellingham Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Bellingham, Washington during each month of the year.
The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70 or 80 °F each month in Bellingham, scroll down farther. There are also monthly and yearly counts of days with cold weather.
The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 47 | 34 | January | 8 | 1 |
| 48 | 35 | February | 9 | 1 |
| 53 | 38 | March | 12 | 3 |
| 57 | 42 | April | 14 | 6 |
| 64 | 47 | May | 18 | 8 |
| 68 | 52 | June | 20 | 11 |
| 73 | 55 | July | 23 | 13 |
| 74 | 55 | August | 24 | 13 |
| 68 | 51 | September | 20 | 10 |
| 60 | 44 | October | 15 | 7 |
| 51 | 38 | November | 11 | 3 |
| 45 | 34 | December | 7 | 1 |
| 59 | 44 | Year | 15 | 7 |
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 46 | 34 | January | 8 | 1 |
| 49 | 35 | February | 9 | 1 |
| 53 | 38 | March | 12 | 3 |
| 58 | 42 | April | 14 | 5 |
| 64 | 47 | May | 18 | 8 |
| 68 | 52 | June | 20 | 11 |
| 73 | 55 | July | 23 | 13 |
| 73 | 55 | August | 23 | 13 |
| 68 | 50 | September | 20 | 10 |
| 59 | 43 | October | 15 | 6 |
| 51 | 38 | November | 11 | 3 |
| 46 | 34 | December | 8 | 1 |
| 59 | 43 | Year | 15 | 6 |
Days of Hot Weather in Bellingham
Bellingham has mainly mild summers, averaging 11 days that reach into the 80s Fahrenheit. Highs of 90 °F (32 °C) or more are not normal here.
| 70 °F 21 °C |
80 °F 27 °C |
|
|---|---|---|
| January | 0 | 0 |
| February | 0 | 0 |
| March | 0 | 0 |
| April | 1 | 0 |
| May | 6 | 1 |
| June | 9 | 2 |
| July | 20 | 4 |
| August | 21 | 4 |
| September | 10 | 1 |
| October | 1 | 0 |
| November | 0 | 0 |
| December | 0 | 0 |
| Year | 67 | 11 |
How Often Bellingham Has Cold Temperatures
Bellingham averages 59 frosty nights a year that begin in October and linger until April or even May. The temperature doesn't normally drop as low as 10 °F (-12 °C) here.
On an average of four days annually the thermometer never rises above freezing. Days that chilly can arrive anytime from November to March.
| 20 °F -8 °C |
32 °F 0 °C | |
|---|---|---|
| January | 2 | 13 |
| February | 1 | 12 |
| March | 0 | 7 |
| April | 0 | 2 |
| May | 0 | 0 |
| June | 0 | 0 |
| July | 0 | 0 |
| August | 0 | 0 |
| September | 0 | 0 |
| October | 0 | 2 |
| November | 1 | 9 |
| December | 2 | 13 |
| Year | 5 | 59 |
References
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.