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March Weather in Hartford, United States

Last updated: June 24, 2025

In March, the average temperature in Hartford, United States hovers around 1°C (34°F), with extremes ranging from a chilly -18°C (0°F) to a surprisingly warm 23°C (73°F). Visitors should prepare for 9 days of rain, accumulating about 72 mm (2.9 in) of precipitation. With an average humidity level of 86%, the air can feel quite damp, so pack accordingly!

March Temperature in Hartford

In March in Hartford, the average temperature is 1°C (34°F). The maximum can reach 23°C (73°F), while the minimum can be as low as -18°C (0°F). This wide temperature range suggests that travelers should prepare for both mild days and potentially cold nights.

March Weather in Hartford: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Hartford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartford, March typically has an average temperature of 1°C (34°F), with highs reaching up to 23°C (73°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec252734465967737164533830
Data source: Temperature data for Hartford 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.

March Precipitation in Hartford

In Hartford in March, the total precipitation amount is 72 mm (2.9 in), occurring over the course of 9 days.

March Precipitation Trends in Hartford

The chart displays monthly precipitation patterns in Hartford, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Hartford, March typically receives around 72 mm (2.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7891721198583114847614110495
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Hartford

In Hartford in March, humidity is 86%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making outdoor adventures brisk and invigorating but challenging for travel.

March Average Humidity in Hartford

This chart illustrates the average monthly humidity levels in Hartford, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Hartford is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Hartford

In Hartford in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Hartford, you can refer to this Hourly UV Index in Hartford.

Maximum UV Index Levels in Hartford for March

The chart shows the monthly maximum UV Index (UVI) for Hartford in March, 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 March, the maximum UV index in Hartford typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997532
Data source: Hartford March 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 March Weather in Hartford Compares to Other Months

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

This table compares monthly weather conditions in Hartford, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)78 mm (3.1 inches)89%moderate
February Weather-3°C (27°F)91 mm (3.6 inches)88%moderate
March Weather1°C (34°F)72 mm (2.9 inches)86%high
April Weather8°C (47°F)119 mm (4.7 inches)84%very high
May Weather15°C (59°F)85 mm (3.3 inches)76%very high
June Weather20°C (68°F)83 mm (3.3 inches)72%very high
July Weather23°C (73°F)114 mm (4.5 inches)66%very high
August Weather22°C (71°F)84 mm (3.3 inches)64%very high
September Weather18°C (64°F)76 mm (3.0 inches)72%high
October Weather11°C (53°F)141 mm (5.6 inches)81%moderate
November Weather3°C (38°F)104 mm (4.1 inches)87%moderate
December Weather-1°C (30°F)94 mm (3.7 inches)84%low

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