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Monthly climate in Bay City, Oregon, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Bay City features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 7 °C (44 °F) and 15 °C (60 °F) through the year, but rarely can drop to -2 °C (28 °F) or can rise to as high as 26 °C (79 °F).The average annual precipitation amounts to about 1886 mm (74.3 inches) and receives 165 rainy days on the 1 mm (0.04 inches) threshold annually.Bay City enjoys an average of 2626 hours of sunshine throughout the year, and daylight varies from 8 hours 45 minutes to 15 hours 36 minutes per day.

Monthly average temperatures in Bay City, Oregon, United States §

The warmest months in Bay City are July, August and September, with daily mean temperatures ranging from 15 to 15 °C (59 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 7 to 8 °C (44 - 46 °F) throughout the day. On average each year, Bay City experiences 0 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bay City, Oregon, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 14°C
(58°F)		 16°C
(61°F)		 18°C
(65°F)		 20°C
(69°F)		 21°C
(71°F)		 26°C
(79°F)		 22°C
(72°F)		 25°C
(77°F)		 25°C
(76°F)		 20°C
(68°F)		 15°C
(60°F)		 13°C
(56°F)
Mean maximum 13°C
(55°F)		 12°C
(54°F)		 14°C
(57°F)		 16°C
(62°F)		 18°C
(65°F)		 21°C
(69°F)		 20°C
(68°F)		 23°C
(74°F)		 21°C
(71°F)		 18°C
(64°F)		 15°C
(59°F)		 13°C
(55°F)
Average high 9°C
(49°F)		 8°C
(47°F)		 9°C
(49°F)		 11°C
(52°F)		 13°C
(56°F)		 15°C
(60°F)		 17°C
(62°F)		 17°C
(63°F)		 17°C
(62°F)		 14°C
(57°F)		 11°C
(53°F)		 9°C
(49°F)
Daily mean 8°C
(46°F)		 7°C
(44°F)		 8°C
(46°F)		 9°C
(49°F)		 11°C
(53°F)		 14°C
(57°F)		 15°C
(59°F)		 15°C
(60°F)		 15°C
(59°F)		 12°C
(54°F)		 10°C
(50°F)		 8°C
(46°F)
Average low 6°C
(44°F)		 5°C
(41°F)		 6°C
(43°F)		 8°C
(46°F)		 10°C
(50°F)		 12°C
(54°F)		 13°C
(56°F)		 14°C
(57°F)		 13°C
(56°F)		 10°C
(51°F)		 8°C
(47°F)		 6°C
(44°F)
Mean minimum 3°C
(37°F)		 1°C
(34°F)		 2°C
(37°F)		 4°C
(40°F)		 7°C
(45°F)		 9°C
(49°F)		 12°C
(54°F)		 12°C
(54°F)		 10°C
(50°F)		 6°C
(44°F)		 5°C
(41°F)		 2°C
(36°F)
Minimum -1°C
(31°F)		 -1°C
(30°F)		 0°C
(33°F)		 2°C
(36°F)		 6°C
(43°F)		 9°C
(49°F)		 11°C
(52°F)		 11°C
(53°F)		 9°C
(48°F)		 4°C
(40°F)		 3°C
(38°F)		 -2°C
(28°F)

Compare climate in Bay City with other places

Compare temperature, precipitation, sunshine, UV index in Bay City, Oregon, United States with other places around the world.

Monthly average precipitation in Bay City, Oregon, United States §

Bay City usually has the most precipitation in January, November and December, with an average of 19 rainy days and 281 mm (11.1 inches) of precipitation per month.The driest months in Bay City are June, July and August. On average, 33 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bay City, Oregon, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 270 (10.6) 244 (9.6) 192 (7.6) 157 (6.2) 77 (3.0) 67 (2.6) 16 (0.6) 17 (0.7) 96 (3.8) 176 (6.9) 274 (10.8) 301 (11.8)
Average precipitation days (≥ 1 mm) 18 20 18 16 12 9 3 4 10 15 18 22

Monthly sunshine hours in Bay City, Oregon, United States §

The sunniest months in Bay City are June, July and August, when the sun shines an average of 10 hours 48 minutes a day.Least sunny months in Bay City: January, February and December receive an average of 3 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bay City, Oregon, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 87 127 202 228 283 316 354 321 261 203 133 105
Mean daily daylight hours 9h 9m 10h 23m 11h 57m 13h 33m 14h 55m 15h 36m 15h 13m 14h 0m 12h 27m 10h 52m 9h 28m 8h 45m

Solar UV radiation in Bay City, Oregon, United States §

Bay City experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Bay City UV Index data.

Average daily maximum UV levels by month for Bay City, Oregon, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 3 5 6 9 10 10 8 7 5 3 2