Weather in Buffalo in April
United States · 20-year averages, April
A hard month. April is a hard month in Buffalo, and worth planning around. Highs sit at 11.7 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.
April ranks 7 of 12 in Buffalo: past the worst of the year but short of August, which is the month to book if the dates are open.
This is persistent light rain rather than storms: 14 wet days but only 2 heavy ones. It rarely cancels anything outright, and it rarely fully clears either. A jacket beats an umbrella. Layers, and a genuinely waterproof outer — at 11.7 °C the difference between a good day and a miserable one is entirely down to what you are wearing.
What the averages hide
Averages flatten a month, and this one hides a few things: 11 nights fall below freezing. Across the twenty years measured, the hottest April day reached 26.2 °C and the coldest night fell to -9.6 °C, and the wettest single day dropped 33 mm — roughly 41% of the month's rain in one day.
April is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest April on record still delivered 133 mm against 37 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 81 mm average is a reasonable planning figure, not a promise.
Wind is light at 6.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 79%, which at 11.7 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.
How April sits in the year
The month is on the way up: 6.9 °C warmer than March, and May adds another 6.8 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in April
13.3 hours of daylight, gaining 1.4 hours across the month. That is between Buffalo's extremes of 15.3 and 9 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 34.1 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
April in Buffalo versus nearby
If Buffalo is one option among several, the nearby comparison is worth making. Hamilton is close enough to be a coin toss — within a degree on temperature, 2 days less rain. Toronto is the weaker option in April — 3.3 °C cooler, the same number of rain days.
So: April is a compromise. August is 27 points better and is what Buffalo is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Buffalo
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | -0.8 | -6.7 | 15 | 64 | 88 | 9.3 | 15 |
| February | -0.1 | -6.9 | 12 | 57 | 87 | 10.5 | 19 |
| March | 4.8 | -3.2 | 13 | 63 | 83 | 11.8 | 24 |
| April | 11.7 | 1.8 | 14 | 81 | 79 | 13.3 | 48 |
| May | 18.5 | 8.2 | 14 | 85 | 77 | 14.6 | 70 |
| June | 23.7 | 14 | 15 | 87 | 74 | 15.3 | 73 |
| July | 27.2 | 17.6 | 16 | 91 | 70 | 15.1 | 71 |
| August | 26.8 | 17.3 | 14 | 79 | 70 | 14 | 75 |
| September | 23.3 | 13.7 | 13 | 87 | 72 | 12.6 | 75 |
| October | 15.4 | 7.5 | 16 | 98 | 78 | 11.1 | 55 |
| November | 8.6 | 1.5 | 14 | 75 | 82 | 9.8 | 38 |
| December | 2.2 | -3.1 | 16 | 80 | 87 | 9 | 17 |
See all twelve months in Buffalo, or where else to go in April.
Planning the rest of the trip
- Flight time to Buffalo how long you are actually in the air
- Buffalo time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Buffalo keep training while you are there