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April Weather in Caldwell, United States

Last updated: June 24, 2025

In Caldwell, United States, the average temperature in April hovers around 12°C (54°F). However, temperatures can vary significantly, ranging from a chilly -3°C (27°F) to a warm 33°C (91°F). Expect about 29 mm (1.2 in) of precipitation over 6 days, with an average humidity of 79%, creating a crisp and fresh atmosphere.

April Temperature in Caldwell

In April in Caldwell, the average temperature is 12°C (54°F). Maximum temperatures can reach 33°C (91°F), while minimums can dip as low as -3°C (27°F). This diverse temperature range makes Caldwell a destination where you should pack for both warm and cool weather to fully enjoy your travels.

April Weather in Caldwell: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Caldwell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caldwell, April typically has an average temperature of 12°C (54°F), with highs reaching up to 33°C (91°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec343747546372827968544335
Data source: Temperature data for Caldwell generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Caldwell

In Caldwell in April, the total precipitation amount is 29 mm (1.2 in) over the course of 6 days.

April Precipitation Trends in Caldwell

The chart displays monthly precipitation patterns in Caldwell, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Caldwell, April typically receives around 29 mm (1.2 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec424331292816169182833
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Caldwell

In Caldwell in April, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

April Average Humidity in Caldwell

This chart illustrates the average monthly humidity levels in Caldwell, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Caldwell is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%85%79%71%71%66%50%48%65%84%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Caldwell

In Caldwell in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Caldwell.

Maximum UV Index Levels in Caldwell for April

The chart shows the monthly maximum UV Index (UVI) for Caldwell in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Caldwell typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810111098542
Data source: Caldwell April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Caldwell Compares to Other Months

Weather in Caldwell varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Caldwell, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Caldwell, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)42 mm (1.7 inches)88%moderate
February Weather3°C (37°F)43 mm (1.7 inches)89%moderate
March Weather8°C (47°F)31 mm (1.2 inches)85%high
April Weather12°C (54°F)29 mm (1.2 inches)79%very high
May Weather17°C (63°F)28 mm (1.1 inches)71%very high
June Weather22°C (73°F)16 mm (0.6 inches)71%extreme
July Weather28°C (82°F)1 mm (0.0 inches)66%very high
August Weather26°C (80°F)5 mm (0.2 inches)50%very high
September Weather20°C (68°F)9 mm (0.4 inches)48%very high
October Weather12°C (54°F)18 mm (0.7 inches)65%moderate
November Weather6°C (43°F)28 mm (1.1 inches)84%moderate
December Weather2°C (35°F)33 mm (1.3 inches)87%low

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