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Heat Seeker Score
Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.
Use the detailed page for charts, component scores, and weather inputs behind every monthly ranking.
Calculations are based on the last 8 years of historical weather data.
Ottawa experiences discomfort temperatures in November, December, January, February and March.
The most comfortable months are June, July, August and September. The temperature range is quite broad, spanning from 8.8°F to 79.1°F throughout the year. April and October are transitional months.
Maximum Temperatures
| Period | Ottawa |
|---|---|
| Jan | 23.0°F |
| Feb | 27.1°F |
| Mar | 35.4°F |
| Apr | 49.3°F |
| May | 63.1°F |
| Jun | 72.9°F |
| Jul | 79.3°F |
| Aug | 76.6°F |
| Sep | 70.3°F |
| Oct | 57.0°F |
| Nov | 40.3°F |
| Dec | 29.7°F |
| Average | 52.0°F |
Minimum Temperatures
| Period | Ottawa |
|---|---|
| Jan | 8.6°F |
| Feb | 11.1°F |
| Mar | 21.7°F |
| Apr | 34.3°F |
| May | 45.5°F |
| Jun | 55.6°F |
| Jul | 61.7°F |
| Aug | 59.7°F |
| Sep | 53.2°F |
| Oct | 43.0°F |
| Nov | 28.9°F |
| Dec | 19.4°F |
| Average | 36.9°F |
Ottawa experiences a significant difference in sunlight hours between summer and winter, with July having the most and January/February the least
Precipitation is relatively consistent throughout the year, with April and October seeing slightly higher amounts compared to the rest
The peak sunshine hours in July contrast sharply with the minimal hours in the winter months
This suggests a climate with distinct sunny summers and overcast winters.
Sunny Weather
| Period | Ottawa |
|---|---|
| Jan | 1.8 hours/day |
| Feb | 1.8 hours/day |
| Mar | 2.2 hours/day |
| Apr | 3.0 hours/day |
| May | 5.3 hours/day |
| Jun | 5.6 hours/day |
| Jul | 7.4 hours/day |
| Aug | 6.2 hours/day |
| Sep | 6.1 hours/day |
| Oct | 3.4 hours/day |
| Nov | 2.1 hours/day |
| Dec | 1.9 hours/day |
| Average | 3.9 hours/day |
Precipitation Levels
| Period | Ottawa |
|---|---|
| Jan | 0.2in |
| Feb | 0.2in |
| Mar | 0.2in |
| Apr | 0.3in |
| May | 0.1in |
| Jun | 0.2in |
| Jul | 0.2in |
| Aug | 0.1in |
| Sep | 0.1in |
| Oct | 0.2in |
| Nov | 0.2in |
| Dec | 0.2in |
| Average | 0.2in |
Wind Speed
| Period | Ottawa |
|---|---|
| Jan | 11.4mph |
| Feb | 11.8mph |
| Mar | 12.6mph |
| Apr | 12.8mph |
| May | 10.8mph |
| Jun | 10.3mph |
| Jul | 9.2mph |
| Aug | 9.0mph |
| Sep | 9.1mph |
| Oct | 10.8mph |
| Nov | 12.0mph |
| Dec | 11.6mph |
| Average | 11.0mph |
Humidity
| Period | Ottawa |
|---|---|
| Jan | 86.6% |
| Feb | 86.9% |
| Mar | 81.6% |
| Apr | 76.5% |
| May | 75.4% |
| Jun | 77.5% |
| Jul | 74.9% |
| Aug | 75.0% |
| Sep | 74.5% |
| Oct | 76.4% |
| Nov | 80.1% |
| Dec | 82.6% |
| Average | 79.0% |
In Ottawa, the earliest sunrise occurs in June at 5:15 AM, while the latest is in January at 7:36 AM, showing a considerable shift in sunrise times throughout the year.
The sunset also varies significantly, with the earliest at 4:21 PM in December and the latest at 8:51 PM in June.
This leads to the shortest day in December being 8 hours and 46 minutes long and the longest day in June lasting 15 hours and 36 minutes, demonstrating a substantial difference in daylight duration between seasons.
The summer months clearly offer significantly more daylight compared to the winter months in Ottawa.
Sunrise Time
| Period | Ottawa |
|---|---|
| Jan | 7:37 |
| Feb | 7:04 |
| Mar | 6:52 |
| Apr | 6:17 |
| May | 5:33 |
| Jun | 5:16 |
| Jul | 5:31 |
| Aug | 6:05 |
| Sep | 6:42 |
| Oct | 7:21 |
| Nov | 7:10 |
| Dec | 7:35 |
| Average | 6:36 |
Sunset Time
| Period | Ottawa |
|---|---|
| Jan | 16:48 |
| Feb | 17:31 |
| Mar | 18:50 |
| Apr | 19:50 |
| May | 20:27 |
| Jun | 20:52 |
| Jul | 20:46 |
| Aug | 20:07 |
| Sep | 19:13 |
| Oct | 18:16 |
| Nov | 16:41 |
| Dec | 16:22 |
| Average | 18:48 |
Useful Day Length
| Period | Ottawa |
|---|---|
| Jan | 9:11 hours |
| Feb | 10:27 hours |
| Mar | 11:50 hours |
| Apr | 12:50 hours |
| May | 13:27 hours |
| Jun | 13:52 hours |
| Jul | 13:46 hours |
| Aug | 13:07 hours |
| Sep | 12:13 hours |
| Oct | 10:55 hours |
| Nov | 9:31 hours |
| Dec | 8:47 hours |
| Average | 11:42 hours |
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