Hollister, California, United States Climate Change Severity

57
High
The current climate change severity in Hollister is High, with a 11.03% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Hollister Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Hollister temperature has changed by around -9.09%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jul. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
10622
-79.2%
cloudyCloudy
5039
-22%
rainyRainy
4033
-17.5%
snowySnowy
00
0%
mistyMisty
051
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 15 years, Hollister has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Hollister experienced significant changes:

Temperature change of

-1.2 °C

Variation in annual rainfall

-24.003 %

Change in average humidity

+16.8 %

PM2.5 levels surged by

-14.2 %

Heatwave changed by

-4.9 day(s)

Coldwave changed by

+0.7 day(s)

Wind speeds changed by

-0.2 km/h

These indicators show that Hollister is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

Check how we calculate Climate Change Severity
Based on data from Jan. to Jul.

Hollister Weather Forecast 30 Days (August - September 2025)
Hollister, California, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Thu. 14, Aug.
cloudyCloudy
Temperature Icon27°/11°
Humidity Icon83%
Wind Icon14km/h
Fri. 15, Aug.
partly cloudyPartly Cloudy
Temperature Icon31°/12°
Humidity Icon74%
Wind Icon14km/h
Sat. 16, Aug.
overcastOvercast
Temperature Icon20°/13°
Humidity Icon90%
Wind Icon14km/h
Sun. 17, Aug.
sunnySunny
Temperature Icon27°/10°
Humidity Icon69%
Wind Icon16km/h
Mon. 18, Aug.
sunnySunny
Temperature Icon29°/9°
Humidity Icon68%
Wind Icon14km/h
Tue. 19, Aug.
sunnySunny
Temperature Icon29°/9°
Humidity Icon54%
Wind Icon13km/h
Wed. 20, Aug.
sunnySunny
Temperature Icon34°/10°
Humidity Icon44%
Wind Icon12km/h
Thu. 21, Aug.
sunnySunny
Temperature Icon34°/13°
Humidity Icon43%
Wind Icon13km/h
Fri. 22, Aug.
sunnySunny
Temperature Icon34°/14°
Humidity Icon45%
Wind Icon13km/h
Sat. 23, Aug.
sunnySunny
Temperature Icon33°/12°
Humidity Icon51%
Wind Icon13km/h
Sun. 24, Aug.
sunnySunny
Temperature Icon32°/10°
Humidity Icon55%
Wind Icon13km/h
Mon. 25, Aug.
sunnySunny
Temperature Icon28°/9°
Humidity Icon67%
Wind Icon14km/h
Tue. 26, Aug.
sunnySunny
Temperature Icon28°/8°
Humidity Icon68%
Wind Icon15km/h
Wed. 27, Aug.
sunnySunny
Temperature Icon27°/10°
Humidity Icon70%
Wind Icon16km/h
Thu. 28, Aug.
sunnySunny
Temperature Icon31°/15°
Humidity Icon52%
Wind Icon14km/h
Fri. 29, Aug.
sunnySunny
Temperature Icon31°/14°
Humidity Icon54%
Wind Icon13km/h
Sat. 30, Aug.
sunnySunny
Temperature Icon30°/13°
Humidity Icon54%
Wind Icon13km/h
Sun. 31, Aug.
sunnySunny
Temperature Icon29°/13°
Humidity Icon56%
Wind Icon13km/h
Mon. 1, Sep.
sunnySunny
Temperature Icon31°/14°
Humidity Icon51%
Wind Icon12km/h
Tue. 2, Sep.
sunnySunny
Temperature Icon31°/15°
Humidity Icon53%
Wind Icon13km/h
Wed. 3, Sep.
sunnySunny
Temperature Icon31°/14°
Humidity Icon53%
Wind Icon14km/h
Thu. 4, Sep.
sunnySunny
Temperature Icon30°/14°
Humidity Icon53%
Wind Icon13km/h
Fri. 5, Sep.
sunnySunny
Temperature Icon31°/14°
Humidity Icon52%
Wind Icon13km/h
Sat. 6, Sep.
sunnySunny
Temperature Icon32°/15°
Humidity Icon46%
Wind Icon12km/h
Sun. 7, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon31°/15°
Humidity Icon46%
Wind Icon13km/h
Mon. 8, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon31°/14°
Humidity Icon49%
Wind Icon13km/h
Tue. 9, Sep.
sunnySunny
Temperature Icon31°/13°
Humidity Icon47%
Wind Icon13km/h
Wed. 10, Sep.
sunnySunny
Temperature Icon31°/14°
Humidity Icon50%
Wind Icon12km/h
Thu. 11, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon30°/14°
Humidity Icon54%
Wind Icon12km/h
Sat. 13, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon28°/13°
Humidity Icon59%
Wind Icon12km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 20, Aug.

34.3°C

Low will be onTue. 26, Aug.

7.8°C

HumidityHumidity

High will be onSat. 16, Aug.

90%

Low will be onThu. 21, Aug.

43%

Wind SpeedWind Speed

High will be onSun. 17, Aug.

15.8km/h

Low will be onMon. 1, Sep.

11.5km/h

PrecipitationPrecipitation

High will be onSat. 13, Sep.

1.5mm

Low will be onSun. 17, Aug.

0.01mm

Ultraviolet IndexUV

High will be onWed. 20, Aug.

6

Low will be onSat. 13, Sep.

4

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