Holtsville, New York, United States Climate Change Severity

52
High
The current climate change severity in Holtsville is High, with a 4.1% improvement in the climate score compared to last 16 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Jan. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Holtsville Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Holtsville temperature has changed by around -211.4%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jan. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
63
-50%
cloudyCloudy
912
33.3%
rainyRainy
93
-66.6%
snowySnowy
22
0%
mistyMisty
01
100%

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

Climate Change Indicators:

Over the past 16 years, Holtsville has experienced measurable shifts in key climate parameters, contributing to the current severity score of 52 (within the High severity category). While the score remains High, certain factors have improved over time. Here’s a breakdown of the specific changes observed:

Severity Score

52/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Holtsville experienced significant changes:

Temperature change of

-2.7 °C

Variation in annual rainfall

+63.01 %

Change in average humidity

+4.4 %

PM2.5 levels surged by

+100 %

Heatwave changed by

-0.6 day(s)

Coldwave changed by

+4.06 day(s)

Wind speeds changed by

+0.1 km/h

These indicators show improvement in key parametes of climate, but Holtsville remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

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

Holtsville Weather Forecast 30 Days (February - March 2026)
Holtsville, New York, United States

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Thu. 19, Feb.
overcastOvercast
Temperature Icon4°/1°
Humidity Icon83%
Wind Icon14km/h
Fri. 20, Feb.
heavy rainHeavy rain
Temperature Icon4°/1°
Humidity Icon96%
Wind Icon27km/h
Sat. 21, Feb.
fogFog
Temperature Icon6°/1°
Humidity Icon93%
Wind Icon12km/h
Sun. 22, Feb.
patchy rain possiblePatchy rain nearby
Temperature Icon3°/0°
Humidity Icon85%
Wind Icon42km/h
Mon. 23, Feb.
blizzardBlizzard
Temperature Icon2°/-2°
Humidity Icon86%
Wind Icon55km/h
Tue. 24, Feb.
partly cloudyPartly Cloudy
Temperature Icon3°/0°
Humidity Icon62%
Wind Icon20km/h
Wed. 25, Feb.
patchy rain possiblePatchy rain nearby
Temperature Icon6°/0°
Humidity Icon72%
Wind Icon37km/h
Thu. 26, Feb.
sunnySunny
Temperature Icon5°/-1°
Humidity Icon63%
Wind Icon23km/h
Fri. 27, Feb.
sunnySunny
Temperature Icon0°/-3°
Humidity Icon51%
Wind Icon22km/h
Sat. 28, Feb.
partly cloudyPartly Cloudy
Temperature Icon1°/-2°
Humidity Icon61%
Wind Icon17km/h
Sun. 1, Mar.
patchy rain possiblePatchy rain nearby
Temperature Icon7°/3°
Humidity Icon80%
Wind Icon24km/h
Mon. 2, Mar.
sunnySunny
Temperature Icon9°/3°
Humidity Icon65%
Wind Icon14km/h
Tue. 3, Mar.
patchy rain possiblePatchy rain nearby
Temperature Icon6°/4°
Humidity Icon84%
Wind Icon22km/h
Wed. 4, Mar.
sunnySunny
Temperature Icon6°/1°
Humidity Icon46%
Wind Icon23km/h
Thu. 5, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon5°/-1°
Humidity Icon66%
Wind Icon27km/h
Fri. 6, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon6°/0°
Humidity Icon69%
Wind Icon27km/h
Sat. 7, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/1°
Humidity Icon75%
Wind Icon30km/h
Sun. 8, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/2°
Humidity Icon71%
Wind Icon26km/h
Mon. 9, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/2°
Humidity Icon71%
Wind Icon26km/h
Tue. 10, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/2°
Humidity Icon76%
Wind Icon25km/h
Wed. 11, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/3°
Humidity Icon75%
Wind Icon27km/h
Thu. 12, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/2°
Humidity Icon73%
Wind Icon28km/h
Fri. 13, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/2°
Humidity Icon70%
Wind Icon28km/h
Sat. 14, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/2°
Humidity Icon72%
Wind Icon28km/h
Sun. 15, Mar.
heavy rain at timesHeavy rain at times
Temperature Icon8°/3°
Humidity Icon74%
Wind Icon27km/h
Mon. 16, Mar.
heavy rain at timesHeavy rain at times
Temperature Icon8°/2°
Humidity Icon71%
Wind Icon24km/h
Tue. 17, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/3°
Humidity Icon74%
Wind Icon23km/h
Wed. 18, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/3°
Humidity Icon69%
Wind Icon25km/h
Thu. 19, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/3°
Humidity Icon70%
Wind Icon25km/h
Fri. 20, Mar.
heavy rain at timesHeavy rain at times
Temperature Icon9°/3°
Humidity Icon69%
Wind Icon24km/h
Sat. 21, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/3°
Humidity Icon69%
Wind Icon25km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 11, Mar.

8.8°C

Low will be onFri. 27, Feb.

-3.5°C

HumidityHumidity

High will be onFri. 20, Feb.

96%

Low will be onWed. 4, Mar.

46%

Wind SpeedWind Speed

High will be onMon. 23, Feb.

55.4km/h

Low will be onSat. 21, Feb.

12.2km/h

PrecipitationPrecipitation

High will be onFri. 20, Feb.

25.4mm

Low will be onThu. 19, Feb.

0.06mm

Ultraviolet IndexUV

High will be onMon. 2, Mar.

3

Low will be onWed. 25, Feb.

1

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