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Monthly climate in Purnia, Bihar, India

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Purnia features a humid subtropical climate (Cwa).Temperatures typically range between 16 °C (61 °F) and 30 °C (86 °F) through the year, but rarely can drop to 7 °C (45 °F) or can rise to as high as 40 °C (105 °F).The average annual precipitation amounts to about 1743 mm (68.6 inches) and receives 153 rainy days on the 1 mm (0.04 inches) threshold annually.Purnia enjoys an average of 3457 hours of sunshine throughout the year, and daylight varies from 10 hours 32 minutes to 13 hours 42 minutes per day.

Monthly average temperatures in Purnia, Bihar, India §

The warmest months in Purnia are June, July and August, with daily mean temperatures ranging from 30 to 30 °C (85 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 16 to 19 °C (61 - 67 °F) throughout the day. On average each year, Purnia experiences 286 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Purnia, Bihar, India.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 29°C
(84°F)		 32°C
(89°F)		 37°C
(99°F)		 40°C
(104°F)		 40°C
(105°F)		 38°C
(101°F)		 38°C
(101°F)		 37°C
(99°F)		 36°C
(98°F)		 36°C
(98°F)		 35°C
(95°F)		 30°C
(87°F)
Mean maximum 27°C
(80°F)		 30°C
(87°F)		 36°C
(97°F)		 38°C
(101°F)		 37°C
(98°F)		 37°C
(98°F)		 36°C
(97°F)		 36°C
(97°F)		 36°C
(97°F)		 35°C
(95°F)		 32°C
(91°F)		 29°C
(85°F)
Average high 23°C
(74°F)		 26°C
(80°F)		 32°C
(89°F)		 34°C
(93°F)		 33°C
(92°F)		 34°C
(93°F)		 33°C
(91°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(90°F)		 30°C
(86°F)		 25°C
(78°F)
Daily mean 16°C
(61°F)		 19°C
(67°F)		 25°C
(77°F)		 28°C
(82°F)		 28°C
(83°F)		 30°C
(86°F)		 30°C
(85°F)		 30°C
(86°F)		 29°C
(85°F)		 27°C
(81°F)		 23°C
(73°F)		 18°C
(65°F)
Average low 11°C
(53°F)		 14°C
(57°F)		 19°C
(66°F)		 23°C
(73°F)		 24°C
(76°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(82°F)		 27°C
(80°F)		 24°C
(75°F)		 17°C
(64°F)		 13°C
(56°F)
Mean minimum 8°C
(46°F)		 10°C
(50°F)		 13°C
(56°F)		 19°C
(66°F)		 21°C
(70°F)		 25°C
(76°F)		 26°C
(78°F)		 26°C
(79°F)		 25°C
(77°F)		 19°C
(67°F)		 13°C
(57°F)		 9°C
(48°F)
Minimum 7°C
(45°F)		 8°C
(47°F)		 10°C
(50°F)		 17°C
(63°F)		 21°C
(70°F)		 22°C
(73°F)		 25°C
(78°F)		 26°C
(79°F)		 23°C
(74°F)		 17°C
(63°F)		 12°C
(54°F)		 7°C
(45°F)

Compare climate in Purnia with other places

Compare temperature, precipitation, sunshine, UV index in Purnia, Bihar, India with other places around the world.

Monthly average precipitation in Purnia, Bihar, India §

Purnia usually has the most precipitation in July, August and September, with an average of 27 rainy days and 340 mm (13.4 inches) of precipitation per month.The driest months in Purnia are January, November and December. On average, 4 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Purnia, Bihar, India.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 3 (0.1) 24 (0.9) 21 (0.8) 72 (2.8) 169 (6.7) 282 (11.1) 378 (14.9) 340 (13.4) 302 (11.9) 145 (5.7) 1 (0.0) 7 (0.3)
Average precipitation days (≥ 1 mm) 1 2 4 9 19 23 29 28 26 12 0 0

Monthly sunshine hours in Purnia, Bihar, India §

The sunniest months in Purnia are March, April and May, when the sun shines an average of 10 hours 34 minutes a day.Least sunny months in Purnia: January, July and September receive an average of 8 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Purnia, Bihar, India.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 234 279 333 321 317 308 248 283 274 289 287 278
Mean daily daylight hours 10h 42m 11h 16m 12h 0m 12h 45m 13h 23m 13h 42m 13h 32m 12h 59m 12h 16m 11h 31m 10h 52m 10h 32m

Solar UV radiation in Purnia, Bihar, India §

Purnia experiences the highest level of ultraviolet (UV) radiation in July, August and September, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure.January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Purnia UV Index data.

Average daily maximum UV levels by month for Purnia, Bihar, India.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 5 6 8 10 10 11 13 12 12 9 7 5