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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Patna Threshold Days by Year

14 fixed thresholds counted per year at Patna (IN004102500): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Patna Thresholds

  • Patna: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1953 with 42.
  • Patna: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1953 with 23.
  • Patna: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1953 with 13.
  • Patna: days with 100 mm (3.94 in) or more of precipitation in 15 years, most in 1948 with 2.
  • 14 fixed thresholds have at least one qualifying day at Patna.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Patna Days per year at Patna with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 244 in 1980. 01002003001980: 2441993: 2051995: 2092006: 2402007: 2032025: 4198019931995200620072025
Days per year at Patna with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 244 in 1980.
Days at or above 30 C (86 F) per year at Patna
YearDaysDecade average
1980244244
1993205207
1995209207
2006240221.5
2007203221.5
202544
First to last qualifying date each year at Patna For each year, a bar from the first to the last day at Patna meeting 30 C (86 F). 1980: 20 February 1980 to 28 November 19801993: 12 February 1993 to 11 November 19931995: 28 February 1995 to 18 November 19952006: 14 February 2006 to 20 November 20062007: 24 February 2007 to 9 November 20072025: 27 May 2025 to 19 August 2025198019931995200620072025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Patna meeting 30 C (86 F).
First to last qualifying date each year at Patna
YearFirst dateLast date
19801980-02-201980-11-28
19931993-02-121993-11-11
19951995-02-281995-11-18
20062006-02-142006-11-20
20072007-02-242007-11-09
20252025-05-272025-08-19

Every Fixed Threshold

Fixed thresholds at Patna
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days624419804
35 C (95 F): Days5107199581
40 C (104 F): Days538199514
45 C (113 F): Days2319801
90 F (32.2 C): Days619920064
100 F (37.8 C): Days561199533
110 F (43.3 C): Days313199513
20 C (68 F): Tropical nights (min10n/a74
25 C (77 F): Days with min10n/a54
10 mm (0.39 in): Days with 10 mm or more rain2642195322
25 mm (0.98 in): Days with 25 mm or more rain2623195313
50 mm (1.97 in): Days with 50 mm or more rain261319531
100 mm (3.94 in): Days with 100 mm or more rain15219481
200 mm (7.87 in): Days with 200 mm or more rain3119601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1980.

Download the Data

  • Data for Patna threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).