Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Pomona features a humid subtropical climate (Cfa). Temperatures typically range between -1 °C (31 °F) and 24 °C (75 °F) through the year, but rarely can drop to -19 °C (-2 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1321 mm (52.0 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Pomona enjoys an average of 2909 hours of sunshine throughout the year, and daylight varies from 9 hours 14 minutes to 15 hours 5 minutes per day.
The warmest months in Pomona are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (69 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (31 - 35 °F) throughout the day. On average each year, Pomona experiences 74 days above 25 °C (77.0 °F) and 88 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 18°C (65°F) |
24°C (76°F) |
26°C (79°F) |
29°C (84°F) |
33°C (91°F) |
34°C (94°F) |
35°C (96°F) |
34°C (94°F) |
32°C (91°F) |
32°C (91°F) |
24°C (76°F) |
17°C (62°F) |
Mean maximum | 13°C (56°F) |
18°C (65°F) |
21°C (69°F) |
25°C (78°F) |
31°C (87°F) |
33°C (91°F) |
34°C (94°F) |
33°C (91°F) |
31°C (88°F) |
27°C (80°F) |
21°C (71°F) |
15°C (59°F) |
Average high | 3°C (38°F) |
5°C (42°F) |
9°C (48°F) |
15°C (58°F) |
20°C (69°F) |
25°C (78°F) |
28°C (83°F) |
27°C (81°F) |
24°C (75°F) |
18°C (65°F) |
10°C (51°F) |
5°C (41°F) |
Daily mean | -1°C (31°F) |
1°C (34°F) |
4°C (39°F) |
10°C (50°F) |
15°C (60°F) |
21°C (69°F) |
24°C (75°F) |
23°C (74°F) |
19°C (67°F) |
14°C (57°F) |
6°C (43°F) |
2°C (35°F) |
Average low | -4°C (25°F) |
-3°C (27°F) |
-0°C (32°F) |
5°C (42°F) |
11°C (52°F) |
16°C (61°F) |
20°C (68°F) |
19°C (67°F) |
15°C (60°F) |
10°C (50°F) |
2°C (35°F) |
-2°C (29°F) |
Mean minimum | -15°C (5°F) |
-14°C (7°F) |
-9°C (17°F) |
-1°C (30°F) |
4°C (39°F) |
11°C (52°F) |
15°C (59°F) |
13°C (56°F) |
8°C (47°F) |
2°C (37°F) |
-7°C (20°F) |
-11°C (13°F) |
Minimum | -18°C (-1°F) |
-19°C (-2°F) |
-13°C (8°F) |
-3°C (26°F) |
0°C (33°F) |
7°C (46°F) |
13°C (56°F) |
12°C (54°F) |
5°C (41°F) |
0°C (33°F) |
-12°C (10°F) |
-14°C (7°F) |
Compare temperature, precipitation, sunshine, UV index in Pomona, New York, United States with other places around the world.
Pomona usually has the most precipitation in July, August and October, with an average of 12 rainy days and 137 mm (5.4 inches) of precipitation per month. The driest months in Pomona are January, March and November. On average, 83 mm (3.3 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 69 (2.7) | 97 (3.8) | 90 (3.5) | 116 (4.6) | 123 (4.8) | 97 (3.8) | 146 (5.7) | 124 (4.9) | 123 (4.8) | 142 (5.6) | 90 (3.5) | 105 (4.2) |
Average precipitation days (≥ 1 mm) | 8 | 11 | 10 | 12 | 13 | 12 | 14 | 13 | 10 | 11 | 10 | 11 |
The sunniest months in Pomona are June, July and August, when the sun shines an average of 10 hours 25 minutes a day. Least sunny months in Pomona: January, February and December receive an average of 5 hours 25 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 145 | 176 | 249 | 238 | 270 | 310 | 337 | 311 | 275 | 217 | 204 | 172 |
Mean daily daylight hours | 9h 34m | 10h 37m | 11h 58m | 13h 20m | 14h 30m | 15h 5m | 14h 46m | 13h 44m | 12h 24m | 11h 2m | 9h 50m | 9h 14m |
Pomona experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Pomona UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 3 | 5 | 6 | 8 | 10 | 10 | 10 | 9 | 8 | 6 | 4 | 2 |
Discover in-depth weather details for every month in Pomona. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Pomona's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.