Jacob Lake Weather Records (USC00024418)

Record envelope, standing records and threshold days for Jacob Lake (USC00024418), Arizona, United States, with 72 years of record.

Key Facts for Jacob Lake

Jacob Lake (USC00024418) is a weather station in Arizona, United States at 36.73 latitude and -112.22 longitude, 2,386 m (7,827 ft) above sea level.
The station reports from 1916 to 1987, 72 years of record.
1,464 records set at Jacob Lake still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Arizona, United States, 36.73 latitude, -112.22 longitude.
Elevation: 2,386 m (7,827 ft).
Period of record: 1916 to 1987, 72 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Jacob Lake. 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 Jacob Lake, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-28.9 C (-20.0 F)	n/a	n/a
Feb	18.3 C (64.9 F)	-25.0 C (-13.0 F)	n/a	n/a
Mar	21.1 C (70.0 F)	-22.8 C (-9.0 F)	n/a	n/a
Apr	21.7 C (71.1 F)	-17.2 C (1.0 F)	n/a	n/a
May	29.4 C (84.9 F)	-9.4 C (15.1 F)	n/a	n/a
Jun	33.9 C (93.0 F)	-7.2 C (19.0 F)	n/a	n/a
Jul	33.3 C (91.9 F)	1.7 C (35.1 F)	n/a	n/a
Aug	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Sep	35.0 C (95.0 F)	-7.8 C (18.0 F)	n/a	n/a
Oct	26.7 C (80.1 F)	-18.9 C (-2.0 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-22.2 C (-8.0 F)	n/a	n/a
Dec	16.1 C (61.0 F)	-23.3 C (-9.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Jacob Lake still stand. 1964 holds the most, with 98.

Standing records at Jacob Lake by the year they were set
Year set	Standing records
1947	9
1948	15
1950	58
1951	64
1955	47
1956	75
1957	64
1960	31
1961	33
1962	26
1963	59
1964	98
1965	61
1966	37
1967	38
1968	39
1969	48
1970	44
1971	83
1972	76
1973	43
1974	8
1975	23
1976	25
1981	13
1982	65
1983	43
1984	51
1985	83
1986	53
1987	52

Wettest Day of Each Month

Jul: 81.3 mm (3.2 in)

The wettest day on record for each calendar month at Jacob Lake. The most was 81.3 mm (3.2 in) on 9 July 1975.

Record daily precipitation for each month at Jacob Lake
Month	Record daily precipitation (mm)	Date
Jan	31.8 mm (1.3 in)	4 January 1973
Feb	40.1 mm (1.6 in)	23 February 1948
Mar	45.0 mm (1.8 in)	23 March 1962
Apr	34.5 mm (1.4 in)	2 April 1964
May	39.4 mm (1.6 in)	13 May 1965
Jun	63.5 mm (2.5 in)	22 June 1972
Jul	81.3 mm (3.2 in)	9 July 1975
Aug	50.8 mm (2.0 in)	19 August 1984
Sep	41.9 mm (1.6 in)	10 September 1917
Oct	45.7 mm (1.8 in)	20 October 1972
Nov	63.5 mm (2.5 in)	29 November 1982
Dec	47.8 mm (1.9 in)	8 December 1960

Period of Record Coverage

1947 to 1987

32 years of record at Jacob Lake, 1947 to 1987. 23 years have data for under 90 percent of days and are left out of rankings: 1947, 1948, 1950, 1951, 1955, 1957, 1958, 1960 and others.

Days with data per year at Jacob Lake
Year	Days with data	Share of year	Complete
1947	41	11%	No
1948	69	19%	No
1950	123	34%	No
1951	241	66%	No
1955	137	38%	No
1956	365	100%	Yes
1957	324	89%	No
1958	58	16%	No
1960	153	42%	No
1961	180	49%	No
1962	200	55%	No
1963	296	81%	No
1964	253	69%	No
1965	274	75%	No
1966	217	59%	No
1967	269	74%	No
1968	292	80%	No
1969	344	94%	Yes
1970	331	91%	Yes
1971	321	88%	No
1972	362	99%	Yes
1973	260	71%	No
1974	91	25%	No
1975	176	48%	No
1976	201	55%	No
1981	30	8%	No
1982	362	99%	Yes
1983	361	99%	Yes
1984	358	98%	Yes
1985	355	97%	Yes
1986	338	93%	Yes
1987	270	74%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1916 to 1987

Yearly extremes at Jacob Lake: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.0 C (95.0 F)	1957	30.6 C (87.1 F)	32
Coldest night (TNn)	-28.9 C (-20.0 F)	1971	-20.8 C (-5.5 F)	32
Wettest day (Rx1day)	81.3 mm (3.2 in)	1975	38.9 mm (1.5 in)	33
Wettest five days (Rx5day)	121.9 mm (4.8 in)	1975	59.7 mm (2.4 in)	33
Longest dry spell (CDD)	112 days	1956	30 days	33

Hottest day (TXx)

The hottest day of the year at Jacob Lake, 1916 to 1987. The record is 35.0 C (95.0 F) in 1957, marked on the chart; the median year is 30.6 C (87.1 F).

Hottest day (TXx) at Jacob Lake by year
Year	Hottest day (TXx)
1916	n/a
1917	n/a
1947	12.8 C (55.0 F)
1948	12.8 C (55.0 F)
1950	29.4 C (84.9 F)
1951	27.8 C (82.0 F)
1955	31.7 C (89.1 F)
1956	30.6 C (87.1 F)
1957	35.0 C (95.0 F)
1958	10.6 C (51.1 F)
1960	32.2 C (90.0 F)
1961	33.9 C (93.0 F)
1962	31.7 C (89.1 F)
1963	32.2 C (90.0 F)
1964	31.1 C (88.0 F)
1965	30.6 C (87.1 F)
1966	30.6 C (87.1 F)
1967	31.7 C (89.1 F)
1968	30.6 C (87.1 F)
1969	31.7 C (89.1 F)
1970	31.1 C (88.0 F)
1971	31.7 C (89.1 F)
1972	32.8 C (91.0 F)
1973	32.2 C (90.0 F)
1974	30.0 C (86.0 F)
1975	30.0 C (86.0 F)
1976	31.1 C (88.0 F)
1981	16.1 C (61.0 F)
1982	30.6 C (87.1 F)
1983	30.6 C (87.1 F)
1984	30.0 C (86.0 F)
1985	33.3 C (91.9 F)
1986	30.6 C (87.1 F)
1987	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at Jacob Lake, 1916 to 1987. The record is -28.9 C (-20.0 F) in 1971, marked on the chart; the median year is -20.8 C (-5.5 F).

Coldest night (TNn) at Jacob Lake by year
Year	Coldest night (TNn)
1916	n/a
1917	n/a
1947	-22.8 C (-9.0 F)
1948	-22.2 C (-8.0 F)
1950	-13.9 C (7.0 F)
1951	-21.1 C (-6.0 F)
1955	-13.3 C (8.1 F)
1956	-20.6 C (-5.1 F)
1957	-17.8 C (0.0 F)
1958	-13.9 C (7.0 F)
1960	-17.8 C (0.0 F)
1961	-17.8 C (0.0 F)
1962	-21.7 C (-7.1 F)
1963	-28.3 C (-18.9 F)
1964	-26.7 C (-16.1 F)
1965	-22.2 C (-8.0 F)
1966	-23.3 C (-9.9 F)
1967	-23.3 C (-9.9 F)
1968	-21.7 C (-7.1 F)
1969	-22.2 C (-8.0 F)
1970	-19.4 C (-2.9 F)
1971	-28.9 C (-20.0 F)
1972	-23.3 C (-9.9 F)
1973	-20.0 C (-4.0 F)
1974	-9.4 C (15.1 F)
1975	-20.0 C (-4.0 F)
1976	-25.6 C (-14.1 F)
1981	-12.8 C (9.0 F)
1982	-22.2 C (-8.0 F)
1983	-18.3 C (-0.9 F)
1984	-18.9 C (-2.0 F)
1985	-26.7 C (-16.1 F)
1986	-19.4 C (-2.9 F)
1987	-18.9 C (-2.0 F)

Wettest day (Rx1day)

The wettest day of the year at Jacob Lake, 1916 to 1987. The record is 81.3 mm (3.2 in) in 1975, marked on the chart; the median year is 38.9 mm (1.5 in).

Wettest day (Rx1day) at Jacob Lake by year
Year	Wettest day (Rx1day)
1916	36.8 mm (1.4 in)
1917	41.9 mm (1.6 in)
1947	24.4 mm (1.0 in)
1948	40.1 mm (1.6 in)
1950	53.3 mm (2.1 in)
1951	44.2 mm (1.7 in)
1955	41.9 mm (1.6 in)
1956	38.9 mm (1.5 in)
1957	35.1 mm (1.4 in)
1958	n/a
1960	47.8 mm (1.9 in)
1961	28.4 mm (1.1 in)
1962	45.0 mm (1.8 in)
1963	51.6 mm (2.0 in)
1964	34.5 mm (1.4 in)
1965	39.4 mm (1.6 in)
1966	25.4 mm (1.0 in)
1967	38.6 mm (1.5 in)
1968	41.1 mm (1.6 in)
1969	26.9 mm (1.1 in)
1970	41.1 mm (1.6 in)
1971	27.9 mm (1.1 in)
1972	63.5 mm (2.5 in)
1973	33.0 mm (1.3 in)
1974	42.2 mm (1.7 in)
1975	81.3 mm (3.2 in)
1976	14.5 mm (0.6 in)
1981	5.1 mm (0.20 in)
1982	63.5 mm (2.5 in)
1983	25.4 mm (1.0 in)
1984	50.8 mm (2.0 in)
1985	31.5 mm (1.2 in)
1986	36.3 mm (1.4 in)
1987	17.0 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Jacob Lake, 1916 to 1987. The record is 121.9 mm (4.8 in) in 1975, marked on the chart; the median year is 59.7 mm (2.4 in).

Wettest five days (Rx5day) at Jacob Lake by year
Year	Wettest five days (Rx5day)
1916	70.3 mm (2.8 in)
1917	41.9 mm (1.6 in)
1947	48.3 mm (1.9 in)
1948	8.1 mm (0.32 in)
1950	80.0 mm (3.1 in)
1951	79.2 mm (3.1 in)
1955	69.8 mm (2.7 in)
1956	54.2 mm (2.1 in)
1957	63.0 mm (2.5 in)
1958	n/a
1960	69.1 mm (2.7 in)
1961	53.0 mm (2.1 in)
1962	59.7 mm (2.4 in)
1963	70.1 mm (2.8 in)
1964	66.0 mm (2.6 in)
1965	47.8 mm (1.9 in)
1966	40.4 mm (1.6 in)
1967	76.2 mm (3.0 in)
1968	81.7 mm (3.2 in)
1969	42.9 mm (1.7 in)
1970	57.7 mm (2.3 in)
1971	46.9 mm (1.8 in)
1972	84.3 mm (3.3 in)
1973	53.9 mm (2.1 in)
1974	63.8 mm (2.5 in)
1975	121.9 mm (4.8 in)
1976	30.7 mm (1.2 in)
1981	5.1 mm (0.20 in)
1982	81.5 mm (3.2 in)
1983	63.0 mm (2.5 in)
1984	85.9 mm (3.4 in)
1985	58.7 mm (2.3 in)
1986	44.1 mm (1.7 in)
1987	35.8 mm (1.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Jacob Lake, 1916 to 1987. The record is 112 days in 1956, marked on the chart; the median year is 30 days.

Longest dry spell (CDD) at Jacob Lake by year
Year	Longest dry spell (CDD)
1916	21 days
1917	10 days
1947	1 day
1948	17 days
1950	64 days
1951	63 days
1955	67 days
1956	112 days
1957	40 days
1958	n/a
1960	22 days
1961	25 days
1962	36 days
1963	39 days
1964	21 days
1965	25 days
1966	24 days
1967	62 days
1968	27 days
1969	44 days
1970	28 days
1971	46 days
1972	89 days
1973	39 days
1974	21 days
1975	37 days
1976	28 days
1981	21 days
1982	30 days
1983	30 days
1984	26 days
1985	27 days
1986	33 days
1987	31 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.

Download the Data

Data for Jacob Lake standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Jacob Lake 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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