Climate and monthly weather forecastFossil, OR
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Fossil, Oregon, with an average temperature ranging between min 28.2°F (-2.1°C) and max 39.7°F (4.3°C). As January takes its course, Fossil's average high-temperature registers at a still icy 39.7°F (4.3°C), closely aligning with the preceding month. Weather in January »Weather in February
February, the last month of the winter in Fossil, is also an icy month, with an average temperature ranging between min 29.8°F (-1.2°C) and max 42.1°F (5.6°C). Fossil commences February with an average high-temperature of a still wintry 42.1°F (5.6°C), maintaining a close resemblance to the previous month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Fossil, Oregon, with an average temperature fluctuating between 48.9°F (9.4°C) and 34.2°F (1.2°C). As Fossil enters March, the average high-temperature marginally increases from the a cold 42.1°F (5.6°C) of February to a chilly 48.9°F (9.4°C). Weather in March »Weather in April
April in Fossil, Oregon, is a moderate spring month, with an average temperature fluctuating between 38.7°F (3.7°C) and 56.8°F (13.8°C). The commencement of April sees a minor shift in the average high-temperature, moving from a chilly 48.9°F (9.4°C) in March to a moderate 56.8°F (13.8°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Fossil, Oregon, with an average temperature ranging between min 45.5°F (7.5°C) and max 66.2°F (19°C). May's arrival signals an increase in average high-temperatures, moving from April's mild 56.8°F (13.8°C) to a comfortable 66.2°F (19°C). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Fossil, Oregon, with an average temperature varying between 51.6°F (10.9°C) and 72.9°F (22.7°C). As Fossil welcomes June, the average high-temperature displays a subtle shift, adjusting from a comfortable 66.2°F (19°C) in May to a pleasant 72.9°F (22.7°C). Weather in June »Weather in July
July is a moderately hot summer month in Fossil, Oregon, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 59.5°F (15.3°C). July stands out as Fossil's warmest month, with temperatures ranging between an average high of 83.1°F (28.4°C) and a low of 59.5°F (15.3°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Fossil, Oregon, with an average temperature ranging between min 60.8°F (16°C) and max 82.2°F (27.9°C). Fossil, Oregon, notes an average high-temperature of a still moderately hot 82.2°F (27.9°C) in August, hardly diverging from July. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Fossil, Oregon, with an average temperature fluctuating between 72.7°F (22.6°C) and 54.1°F (12.3°C). The transition into September indicates a reduction in the average high-temperature, down to a pleasant 72.7°F (22.6°C) from August's moderately hot 82.2°F (27.9°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Fossil, Oregon, with an average temperature varying between 58.6°F (14.8°C) and 43.3°F (6.3°C). The transition into October indicates a reduction in the average high-temperature, down to a refreshing 58.6°F (14.8°C) from September's agreeable 72.7°F (22.6°C). Weather in October »Weather in November
November, the last month of the autumn in Fossil, is another chilly month, with an average temperature varying between 46.9°F (8.3°C) and 34.7°F (1.5°C). As Fossil, Oregon, enters November, the average high-temperature decreases from the a moderate 58.6°F (14.8°C) of October to a frosty 46.9°F (8.3°C). Weather in November »Weather in December
December, the first month of the winter in Fossil, is also a wintry month, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 27.1°F (-2.7°C). The coldest temperatures occur during December, when averages reach a peak of 37.9°F (3.3°C) and a low of 27.1°F (-2.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Fossil, OR
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (37.9°F).
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure
Fossil, OR
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed
Fossil, OR
- Average wind speed in January:
7.8mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.6mph - Average wind speed in April:
9.4mph - Average wind speed in May:
8.7mph - Average wind speed in June:
9.1mph
- Average wind speed in July:
8mph - Average wind speed in August:
7.5mph - Average wind speed in September:
7.2mph - Average wind speed in October:
7.4mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).
Average humidity
Fossil, OR
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall
Fossil, OR
- Average rainfall in January:
1.54" - Average rainfall in February:
1.81" - Average rainfall in March:
1.61" - Average rainfall in April:
1.34" - Average rainfall in May:
1.18" - Average rainfall in June:
0.94"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.47" - Average rainfall in September:
0.47" - Average rainfall in October:
1.18" - Average rainfall in November:
1.1" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Fossil, OR
- Average rainfall days in January:
14 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
17 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
9.1 days
- Average rainfall days in July:
4.3 days - Average rainfall days in August:
4.1 days - Average rainfall days in September:
6.6 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
12.1 days - Average rainfall days in December:
12.8 days
The month with the highest number of rainy days is March (17 days).
The month with the least rainy days is August (4.1 days).
Average snowfall
Fossil, OR
- Average snowfall in January:
3.78" - Average snowfall in February:
6.61" - Average snowfall in March:
2.24" - Average snowfall in April:
0.31" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Fossil, OR
- Average snowfall days in January:
6.1 days - Average snowfall days in February:
7.5 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.3 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
2.4 days - Average snowfall days in December:
9.2 days
The month with the highest number of snowfall days is December (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Fossil, OR
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 18min - Average sunshine in March:
7h and 12min - Average sunshine in April:
9h and 48min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 18min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 48min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 12min - Average sunshine in December:
5h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 18min).
Average sunshine days
Fossil, OR
- Average sunshine days in January:
13.3 days - Average sunshine days in February:
10.2 days - Average sunshine days in March:
9.5 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
16.3 days - Average sunshine days in June:
19.2 days
- Average sunshine days in July:
24.4 days - Average sunshine days in August:
24.3 days - Average sunshine days in September:
21.2 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
14.5 days - Average sunshine days in December:
12.8 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (9.5 days).
Average UV index
Fossil, OR
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Fossil, OR
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility
Fossil, OR
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





