Climate Insights for Boulder Creek

Hitchcock County, California, United States

Hottest
Settembre
23°C peak
Coldest
Febbraio
9°C low
Wettest
Gennaio
126mm rain
Best to Visit
Giugno, Luglio, Agosto
Mild temps & low rain

Climate Overview

The climate in Boulder Creek is temperate. The average annual temperature is 14°C and approximately 580mm of precipitation falls per year. Gennaio is the wettest month, receiving around 126mm of rainfall. Boulder Creek is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Settembre, Agosto, Ottobre. The coldest months are Febbraio, Dicembre, Gennaio, when temperatures can drop to 9°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 14° Average: 11° Min: 9° Feb Max: 15° Average: 12° Min: 9° Mar Max: 16° Average: 12° Min: 9° Apr Max: 17° Average: 13° Min: 10° May Max: 18° Average: 14° Min: 11° Jun Max: 20° Average: 16° Min: 13° Jul Max: 21° Average: 17° Min: 14° Aug Max: 22° Average: 18° Min: 15° Sep Max: 23° Average: 18° Min: 15° Oct Max: 21° Average: 17° Min: 13° Nov Max: 17° Average: 13° Min: 10° Dec Max: 14° Average: 11° Min: 9°
Max
Average
Min

Boulder Creek sees moderate temperature variation throughout the year, ranging from 9°C to 23°C. Settembre is the warmest month, though highs remain moderate at 23°C with a mean of 18°C. Febbraio is the coolest month, with minimum temperatures around 9°C and an average of 12°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 126mm Feb Precipitation: 102mm Mar Precipitation: 101mm Apr Precipitation: 33mm May Precipitation: 18mm Jun Precipitation: 1mm Jul Precipitation: 1mm Aug Precipitation: 0mm Sep Precipitation: 3mm Oct Precipitation: 25mm Nov Precipitation: 56mm Dec Precipitation: 114mm
Precipitation

Boulder Creek is a relatively dry area, receiving approximately 580mm of precipitation annually, which averages out to around 48mm per month. The wettest month is January, averaging 126mm of rainfall. December and February also tend to see above-average precipitation. The driest month is August, with just 0mm. That's 125mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 15km/h Feb Wind Speed: 17km/h Mar Wind Speed: 16km/h Apr Wind Speed: 17km/h May Wind Speed: 16km/h Jun Wind Speed: 16km/h Jul Wind Speed: 14km/h Aug Wind Speed: 14km/h Sep Wind Speed: 14km/h Oct Wind Speed: 13km/h Nov Wind Speed: 13km/h Dec Wind Speed: 14km/h
Wind Speed

Boulder Creek is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

93 days until Summer

It is currently spring in Boulder Creek, which began on March 20, 2026. Boulder Creek is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Settembre at around 23°C, while the coldest stretch bottoms out in Febbraio near 9°C. Summer is next, beginning on June 21, 2026 — 93 days from now.

Spring

Temperatures range from 9 to 18°C. Precipitation is moderate at around 152mm for the season, averaging 51mm per month. Winds are moderate at around 16km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 13 to 22°C. Precipitation is minimal, with only around 2mm for the entire season. Winds are generally light, averaging 15km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from 10 to 23°C. Rainfall is relatively light, with around 84mm over the season and a monthly average of 28mm. Winds are generally light, averaging 13km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from 9 to 15°C. Rainfall is heavy, totalling around 341mm across the season with a monthly average of 114mm. Winds are moderate at around 15km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 11°
Feb 12°
Mar 12°
Apr 13°
May 14°
Jun 16°
Jul 17°
Aug 18°
Sep 18°
Oct 17°
Nov 13°
Dec 11°

The best time to visit Boulder Creek is during Giugno, Luglio, Agosto, Settembre and Ottobre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 6mm per month. By contrast, Febbraio can be quite cold with temperatures dropping to 9°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Boulder Creek based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
9 °C
14 °C
15 km/h
126 mm
0 cm
Feb
9 °C
15 °C
17 km/h
102 mm
0 cm
Mar Current
9 °C
16 °C
16 km/h
101 mm
0 cm
Apr
10 °C
17 °C
17 km/h
33 mm
0 cm
May
11 °C
18 °C
16 km/h
18 mm
0 cm
Jun
13 °C
20 °C
16 km/h
1 mm
0 cm
Jul
14 °C
21 °C
14 km/h
1 mm
0 cm
Aug
15 °C
22 °C
14 km/h
0 mm
0 cm
Sep
15 °C
23 °C
14 km/h
3 mm
0 cm
Oct
13 °C
21 °C
13 km/h
25 mm
0 cm
Nov
10 °C
17 °C
13 km/h
56 mm
0 cm
Dec
9 °C
14 °C
14 km/h
114 mm
0 cm
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Metric (°C, km/h)