Average data for 10 years
1 April
Tuesday
+10°
+3°
2 April
Wednesday
+9°
+1°
3 April
Thursday
+10°
+2°
4 April
Friday
+9°
+2°
5 April
Saturday
+8°
0°
6 April
Sunday
+11°
0°
7 April
Monday
+10°
+2°
8 April
Tuesday
+9°
+2°
9 April
Wednesday
+10°
+2°
10 April
Thursday
+11°
+1°
11 April
Friday
+12°
+3°
12 April
Saturday
+13°
+4°
13 April
Sunday
+12°
+4°
14 April
Monday
+14°
+4°
15 April
Tuesday
+15°
+4°
16 April
Wednesday
+14°
+5°
17 April
Thursday
+12°
+4°
18 April
Friday
+13°
+3°
19 April
Saturday
+14°
+5°
20 April
Sunday
+15°
+5°
21 April
Monday
+14°
+5°
22 April
Tuesday
+12°
+5°
23 April
Wednesday
+13°
+4°
24 April
Thursday
+13°
+4°
25 April
Friday
+13°
+4°
26 April
Saturday
+14°
+5°
27 April
Sunday
+13°
+4°
28 April
Monday
+13°
+4°
29 April
Tuesday
+14°
+4°
30 April
Wednesday
+15°
+6°
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In April, the weather in Olean is typically warm. Average daily high temperature in April is about 12 degrees above zero. On average, Olean has 12 rainy, 7 sunny, 7 partly cloudy, and 4 cloudy days in April. The rains are usually heavy. April as well as January, February, March, and May is considered the most uncomfortable time to visit Olean.