Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Central San Francisco Weather Records (RQC00662316)

Record envelope, standing records and threshold days for Central San Francisco (RQC00662316), PR, Puerto Rico [United States], with 42 years of record.

Key Facts for Central San Francisco

  • Central San Francisco (RQC00662316) is a weather station in PR, Puerto Rico [United States] at 17.98 latitude and -66.82 longitude, 9 m (30 ft) above sea level.
  • The station reports from 1955 to 1996, 42 years of record.
  • 0 records set at Central San Francisco still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Central San Francisco set a daily record precipitation of 51.1 mm (2.0 in) on 16 June 1996.

About the Station

  • Location: PR, Puerto Rico [United States], 17.98 latitude, -66.82 longitude.
  • Elevation: 9 m (30 ft).
  • Period of record: 1955 to 1996, 42 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Central San Francisco, with 2026 drawn through them The band shows the record high and record low for each calendar day at Central San Francisco. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Central San Francisco. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Central San Francisco, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Central San Francisco by the year they were set 0 records at Central San Francisco still stand. 00000000000
0 records at Central San Francisco still stand.
Standing records at Central San Francisco by the year they were set
Year setStanding records

All-Time Record Progression

1 new records
When Central San Francisco set new all-time records 1 all-time records were set at Central San Francisco between 7 October 1985 and 7 October 1985. Each dot is a new record. Record daily precipitation7 October 1985: Record daily precipitation 304.8 mm (12.0 in)1985
1 all-time records were set at Central San Francisco between 7 October 1985 and 7 October 1985. Each dot is a new record.
When Central San Francisco set new all-time records
DateKindDetail
1985-10-07Record daily precipitationRecord daily precipitation 304.8 mm (12.0 in)

Wettest Day of Each Month

Oct: 304.8 mm (12.0 in)
Record daily precipitation for each month at Central San Francisco The wettest day on record for each calendar month at Central San Francisco. The most was 304.8 mm (12.0 in) on 7 October 1985. 0100200300400 Jan: 74.2 mm (2.9 in), 6 January 1992 Jan Feb: 96.5 mm (3.8 in), 8 February 1960 Feb Mar: 60.5 mm (2.4 in), 13 March 1983 Mar Apr: 112.3 mm (4.4 in), 22 April 1992 Apr May: 91.4 mm (3.6 in), 28 May 1980 May Jun: 182.9 mm (7.2 in), 11 June 1979 Jun Jul: 153.4 mm (6.0 in), 19 July 1979 Jul Aug: 171.5 mm (6.8 in), 31 August 1979 Aug Sep: 297.2 mm (11.7 in), 13 September 1982 Sep Oct: 304.8 mm (12.0 in), 7 October 1985 Oct Nov: 103.4 mm (4.1 in), 4 November 1984 Nov Dec: 90.9 mm (3.6 in), 24 December 1965 Dec
The wettest day on record for each calendar month at Central San Francisco. The most was 304.8 mm (12.0 in) on 7 October 1985.
Record daily precipitation for each month at Central San Francisco
MonthRecord daily precipitation (mm)Date
Jan74.2 mm (2.9 in)6 January 1992
Feb96.5 mm (3.8 in)8 February 1960
Mar60.5 mm (2.4 in)13 March 1983
Apr112.3 mm (4.4 in)22 April 1992
May91.4 mm (3.6 in)28 May 1980
Jun182.9 mm (7.2 in)11 June 1979
Jul153.4 mm (6.0 in)19 July 1979
Aug171.5 mm (6.8 in)31 August 1979
Sep297.2 mm (11.7 in)13 September 1982
Oct304.8 mm (12.0 in)7 October 1985
Nov103.4 mm (4.1 in)4 November 1984
Dec90.9 mm (3.6 in)24 December 1965

Latest Records

20
Latest records at Central San Francisco
DateStationRecordValueBeat old record byOld record stoodSignificance
16 June 1996Central San Francisco, PRdaily rain51.1 mm (2.0 in)17.6 mm (0.7 in)26 years20 of 100 (Routine)
30 March 1996Central San Francisco, PRdaily rain6.4 mm (0.25 in)5.4 mm (0.21 in)7 years11 of 100 (Routine)
9 March 1996Central San Francisco, PRdaily rain4.1 mm (0.16 in)2.1 mm (0.08 in)27 years14 of 100 (Routine)
17 February 1996Central San Francisco, PRdaily rain (Tie)7.4 mm (0.29 in)tie2 years1 of 100 (Routine)
10 January 1996Central San Francisco, PRdaily rain31.2 mm (1.2 in)27.4 mm (1.1 in)40 years39 of 100 (Notable)
19 August 1995Central San Francisco, PRdaily rain28.4 mm (1.1 in)13.4 mm (0.5 in)36 years21 of 100 (Routine)
2 June 1995Central San Francisco, PRdaily rain13.5 mm (0.5 in)4.6 mm (0.18 in)13 years10 of 100 (Routine)
12 April 1995Central San Francisco, PRdaily rain59.7 mm (2.4 in)41.9 mm (1.6 in)8 years39 of 100 (Notable)
27 February 1995Central San Francisco, PRdaily rain9.9 mm (0.39 in)4.3 mm (0.17 in)7 years10 of 100 (Routine)
26 February 1995Central San Francisco, PRdaily rain19.6 mm (0.8 in)14.5 mm (0.6 in)9 years20 of 100 (Routine)
22 February 1995Central San Francisco, PRdaily rain34.3 mm (1.4 in)12.7 mm (0.5 in)13 years22 of 100 (Routine)
23 December 1994Central San Francisco, PRdaily rain11.2 mm (0.4 in)8.2 mm (0.32 in)24 years18 of 100 (Routine)
17 October 1994Central San Francisco, PRdaily rain57.4 mm (2.3 in)2.5 mm (0.10 in)39 years16 of 100 (Routine)
24 September 1994Central San Francisco, PRdaily rain61.5 mm (2.4 in)20.9 mm (0.8 in)4 years13 of 100 (Routine)
26 July 1994Central San Francisco, PRdaily rain18.5 mm (0.7 in)14.7 mm (0.6 in)20 years18 of 100 (Routine)
7 April 1994Central San Francisco, PRdaily rain17.0 mm (0.7 in)0.7 mm (0.03 in)7 years6 of 100 (Routine)
2 March 1994Central San Francisco, PRdaily rain14.2 mm (0.6 in)10.4 mm (0.4 in)4 years15 of 100 (Routine)
23 January 1994Central San Francisco, PRdaily rain39.1 mm (1.5 in)6.6 mm (0.26 in)20 years15 of 100 (Routine)
21 November 1993Central San Francisco, PRdaily rain55.1 mm (2.2 in)28.2 mm (1.1 in)26 years29 of 100 (Routine)
17 August 1993Central San Francisco, PRdaily rain34.0 mm (1.3 in)21.3 mm (0.8 in)34 years23 of 100 (Routine)

Extremes by Year

1955 to 1996
Yearly extremes at Central San Francisco: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)304.8 mm (12.0 in)198579.9 mm (3.1 in)42
Wettest five days (Rx5day)367.0 mm (14.4 in)1985123.3 mm (4.9 in)42
Longest dry spell (CDD)78 days195534 days42

Wettest day (Rx1day)

Wettest day (Rx1day) at Central San Francisco by year The wettest day of the year at Central San Francisco, 1955 to 1996. The record is 304.8 mm (12.0 in) in 1985, marked on the chart; the median year is 79.9 mm (3.1 in). 01002003004001960197019801990Record: 304.8 mm (12.0 in) in 1985
The wettest day of the year at Central San Francisco, 1955 to 1996. The record is 304.8 mm (12.0 in) in 1985, marked on the chart; the median year is 79.9 mm (3.1 in).
Wettest day (Rx1day) at Central San Francisco by year
YearWettest day (Rx1day)
195561.7 mm (2.4 in)
1956160.0 mm (6.3 in)
195793.0 mm (3.7 in)
1958145.5 mm (5.7 in)
195994.0 mm (3.7 in)
1960108.0 mm (4.3 in)
196156.1 mm (2.2 in)
196248.5 mm (1.9 in)
1963143.8 mm (5.7 in)
1964100.1 mm (3.9 in)
196590.9 mm (3.6 in)
196691.4 mm (3.6 in)
196744.5 mm (1.8 in)
196871.1 mm (2.8 in)
196962.5 mm (2.5 in)
197061.5 mm (2.4 in)
197141.9 mm (1.6 in)
197246.5 mm (1.8 in)
197350.8 mm (2.0 in)
197486.9 mm (3.4 in)
1975177.8 mm (7.0 in)
197654.4 mm (2.1 in)
197748.8 mm (1.9 in)
197871.1 mm (2.8 in)
1979182.9 mm (7.2 in)
198091.4 mm (3.6 in)
198180.5 mm (3.2 in)
1982297.2 mm (11.7 in)
198379.2 mm (3.1 in)
1984103.4 mm (4.1 in)
1985304.8 mm (12.0 in)
198683.1 mm (3.3 in)
198778.0 mm (3.1 in)
1988108.2 mm (4.3 in)
198945.7 mm (1.8 in)
199096.0 mm (3.8 in)
199172.4 mm (2.9 in)
1992112.3 mm (4.4 in)
199364.0 mm (2.5 in)
199461.5 mm (2.4 in)
199573.7 mm (2.9 in)
199651.1 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Central San Francisco by year The wettest five days of the year at Central San Francisco, 1955 to 1996. The record is 367.0 mm (14.4 in) in 1985, marked on the chart; the median year is 123.3 mm (4.9 in). 01002003004001960197019801990Record: 367.0 mm (14.4 in) in 1985
The wettest five days of the year at Central San Francisco, 1955 to 1996. The record is 367.0 mm (14.4 in) in 1985, marked on the chart; the median year is 123.3 mm (4.9 in).
Wettest five days (Rx5day) at Central San Francisco by year
YearWettest five days (Rx5day)
1955105.5 mm (4.2 in)
1956160.0 mm (6.3 in)
1957113.6 mm (4.5 in)
1958145.5 mm (5.7 in)
1959121.5 mm (4.8 in)
1960217.3 mm (8.6 in)
196174.2 mm (2.9 in)
196265.7 mm (2.6 in)
1963178.8 mm (7.0 in)
1964125.0 mm (4.9 in)
196591.2 mm (3.6 in)
1966140.2 mm (5.5 in)
196791.7 mm (3.6 in)
196897.2 mm (3.8 in)
196985.6 mm (3.4 in)
1970228.4 mm (9.0 in)
197167.4 mm (2.7 in)
197255.1 mm (2.2 in)
197370.4 mm (2.8 in)
1974132.6 mm (5.2 in)
1975322.3 mm (12.7 in)
197654.4 mm (2.1 in)
197780.3 mm (3.2 in)
1978302.3 mm (11.9 in)
1979331.3 mm (13.0 in)
1980104.6 mm (4.1 in)
1981104.4 mm (4.1 in)
1982308.1 mm (12.1 in)
1983152.7 mm (6.0 in)
1984208.4 mm (8.2 in)
1985367.0 mm (14.4 in)
1986235.2 mm (9.3 in)
1987235.0 mm (9.3 in)
1988175.1 mm (6.9 in)
1989102.6 mm (4.0 in)
1990201.6 mm (7.9 in)
199172.7 mm (2.9 in)
1992169.4 mm (6.7 in)
199389.4 mm (3.5 in)
1994127.3 mm (5.0 in)
1995120.7 mm (4.8 in)
199666.8 mm (2.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Central San Francisco by year The longest dry spell of the year at Central San Francisco, 1955 to 1996. The record is 78 days in 1955, marked on the chart; the median year is 34 days. 0204060801960197019801990Record: 78 days in 1955
The longest dry spell of the year at Central San Francisco, 1955 to 1996. The record is 78 days in 1955, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Central San Francisco by year
YearLongest dry spell (CDD)
195578 days
195634 days
195749 days
195841 days
195951 days
196028 days
196129 days
196235 days
196335 days
196431 days
196540 days
196622 days
196734 days
196822 days
196930 days
197051 days
197126 days
197238 days
197338 days
197419 days
197559 days
197647 days
197729 days
197819 days
197956 days
198026 days
198121 days
198252 days
198328 days
198424 days
198540 days
198624 days
198741 days
198833 days
198948 days
199043 days
199141 days
199223 days
199341 days
199428 days
199525 days
199623 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

41 years, 1955 to 1995

A day with at least 78.6 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 354.3 mm (13.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Central San Francisco: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years78.6 mm (3.1 in)
5 years119.7 mm (4.7 in)
10 years156.7 mm (6.2 in)
25 years218.7 mm (8.6 in)
50 years278.9 mm (11.0 in)Longer than the 41 years of record
100 years354.3 mm (13.9 in)Longer than the 41 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 41 years of values from 1955 to 1995.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 304.8 mm (12.0 in) in 1985; 297.2 mm (11.7 in) in 1982; 182.9 mm (7.2 in) in 1979.

Download the Data

  • Data for Central San Francisco standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Central San Francisco 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

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