Sidnaw Weather Records (USC00207557)

Record envelope, standing records and threshold days for Sidnaw (USC00207557), Michigan, United States, with 45 years of record.

Key Facts for Sidnaw

Sidnaw (USC00207557) is a weather station in Michigan, United States at 46.50 latitude and -88.72 longitude, n/a above sea level.
The station reports from 1896 to 1940, 45 years of record.
1,464 records set at Sidnaw still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Michigan, United States, 46.50 latitude, -88.72 longitude.
Elevation: n/a.
Period of record: 1896 to 1940, 45 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 Sidnaw. 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 Sidnaw, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	8.9 C (48.0 F)	-42.8 C (-45.0 F)	n/a	n/a
Feb	16.1 C (61.0 F)	-43.3 C (-45.9 F)	n/a	n/a
Mar	23.9 C (75.0 F)	-40.0 C (-40.0 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-25.6 C (-14.1 F)	n/a	n/a
May	37.8 C (100.0 F)	-12.2 C (10.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	-9.4 C (15.1 F)	n/a	n/a
Jul	40.0 C (104.0 F)	-2.8 C (27.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	-3.3 C (26.1 F)	n/a	n/a
Sep	35.6 C (96.1 F)	-7.8 C (18.0 F)	n/a	n/a
Oct	29.4 C (84.9 F)	-17.8 C (0.0 F)	n/a	n/a
Nov	22.8 C (73.0 F)	-23.3 C (-9.9 F)	n/a	n/a
Dec	12.2 C (54.0 F)	-34.4 C (-29.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Sidnaw still stand. 1931 holds the most, with 76.

Standing records at Sidnaw by the year they were set
Year set	Standing records
1896	14
1897	44
1898	45
1899	50
1900	67
1901	37
1902	23
1903	7
1915	12
1916	46
1917	37
1918	28
1920	63
1921	65
1922	36
1923	62
1924	49
1925	66
1926	45
1927	49
1928	48
1929	45
1930	65
1931	76
1932	46
1933	43
1934	50
1935	43
1936	52
1937	48
1938	39
1939	35
1940	29

Wettest Day of Each Month

Aug: 106.2 mm (4.2 in)

The wettest day on record for each calendar month at Sidnaw. The most was 106.2 mm (4.2 in) on 29 August 1932.

Record daily precipitation for each month at Sidnaw
Month	Record daily precipitation (mm)	Date
Jan	25.4 mm (1.0 in)	18 January 1897
Feb	38.1 mm (1.5 in)	11 February 1898
Mar	35.6 mm (1.4 in)	20 March 1901
Apr	40.1 mm (1.6 in)	28 April 1938
May	50.8 mm (2.0 in)	18 May 1898
Jun	58.4 mm (2.3 in)	11 June 1939
Jul	73.7 mm (2.9 in)	17 July 1927
Aug	106.2 mm (4.2 in)	29 August 1932
Sep	84.6 mm (3.3 in)	14 September 1916
Oct	53.1 mm (2.1 in)	20 October 1937
Nov	52.6 mm (2.1 in)	8 November 1926
Dec	51.1 mm (2.0 in)	12 December 1921

Period of Record Coverage

1896 to 1940

33 years of record at Sidnaw, 1896 to 1940. 11 years have data for under 90 percent of days and are left out of rankings: 1896, 1897, 1898, 1899, 1901, 1902, 1903, 1915 and others.

Days with data per year at Sidnaw
Year	Days with data	Share of year	Complete
1896	67	18%	No
1897	321	88%	No
1898	326	89%	No
1899	291	80%	No
1900	347	95%	Yes
1901	287	79%	No
1902	203	56%	No
1903	79	22%	No
1915	151	41%	No
1916	365	100%	Yes
1917	364	100%	Yes
1918	148	41%	No
1920	365	100%	Yes
1921	364	100%	Yes
1922	361	99%	Yes
1923	361	99%	Yes
1924	361	99%	Yes
1925	365	100%	Yes
1926	365	100%	Yes
1927	365	100%	Yes
1928	366	100%	Yes
1929	365	100%	Yes
1930	361	99%	Yes
1931	360	99%	Yes
1932	366	100%	Yes
1933	364	100%	Yes
1934	365	100%	Yes
1935	364	100%	Yes
1936	360	98%	Yes
1937	364	100%	Yes
1938	364	100%	Yes
1939	312	85%	No
1940	304	83%	No

Latest Records

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

Climate Trend

22 complete years, 1900 to 1938

One stripe for each of 22 complete years at Sidnaw, 1900 to 1938. Blue stripes are years cooler than the station's own mean of 4.1 C (39.4 F); red stripes are warmer. The coolest year was 1917, at 2.3 C (36.1 F), and the warmest was 1931, at 6.6 C (43.9 F). The strongest colour marks a difference of 2.6 C (4.7 F).

Annual mean temperature at Sidnaw as warming stripes, 1900 to 1938
Year	Annual mean temperature	Difference from the station mean
1900	4.9 C	+0.80 C
1916	3.5 C	-0.61 C
1917	2.3 C	-1.82 C
1920	4.2 C	+0.14 C
1921	6.5 C	+2.37 C
1922	5.0 C	+0.89 C
1923	4.4 C	+0.30 C
1924	3.0 C	-1.06 C
1925	3.9 C	-0.18 C
1926	2.4 C	-1.68 C
1927	3.6 C	-0.45 C
1928	3.4 C	-0.64 C
1929	2.7 C	-1.39 C
1930	4.5 C	+0.45 C
1931	6.6 C	+2.54 C
1932	4.6 C	+0.50 C
1933	4.2 C	+0.10 C
1934	3.8 C	-0.26 C
1935	3.8 C	-0.28 C
1936	3.5 C	-0.59 C
1937	4.0 C	-0.08 C
1938	5.1 C	+1.03 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1896 to 1940

Yearly extremes at Sidnaw: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1936	33.9 C (93.0 F)	33
Coldest night (TNn)	-43.3 C (-45.9 F)	1934	-35.0 C (-31.0 F)	33
Wettest day (Rx1day)	106.2 mm (4.2 in)	1932	46.0 mm (1.8 in)	33
Wettest five days (Rx5day)	205.8 mm (8.1 in)	1932	65.6 mm (2.6 in)	33
Longest dry spell (CDD)	39 days	1918	20 days	33

Hottest day (TXx)

The hottest day of the year at Sidnaw, 1896 to 1940. The record is 40.0 C (104.0 F) in 1936, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at Sidnaw by year
Year	Hottest day (TXx)
1896	11.7 C (53.1 F)
1897	36.7 C (98.1 F)
1898	35.6 C (96.1 F)
1899	35.6 C (96.1 F)
1900	35.0 C (95.0 F)
1901	37.8 C (100.0 F)
1902	31.7 C (89.1 F)
1903	13.3 C (55.9 F)
1915	29.4 C (84.9 F)
1916	35.0 C (95.0 F)
1917	36.7 C (98.1 F)
1918	31.7 C (89.1 F)
1920	32.8 C (91.0 F)
1921	36.1 C (97.0 F)
1922	32.8 C (91.0 F)
1923	32.2 C (90.0 F)
1924	31.1 C (88.0 F)
1925	33.3 C (91.9 F)
1926	31.1 C (88.0 F)
1927	34.4 C (93.9 F)
1928	31.7 C (89.1 F)
1929	32.8 C (91.0 F)
1930	33.3 C (91.9 F)
1931	37.8 C (100.0 F)
1932	34.4 C (93.9 F)
1933	36.1 C (97.0 F)
1934	37.8 C (100.0 F)
1935	33.3 C (91.9 F)
1936	40.0 C (104.0 F)
1937	36.7 C (98.1 F)
1938	32.8 C (91.0 F)
1939	33.9 C (93.0 F)
1940	34.4 C (93.9 F)

Coldest night (TNn)

The coldest night of the year at Sidnaw, 1896 to 1940. The record is -43.3 C (-45.9 F) in 1934, marked on the chart; the median year is -35.0 C (-31.0 F).

Coldest night (TNn) at Sidnaw by year
Year	Coldest night (TNn)
1896	-33.3 C (-27.9 F)
1897	-34.4 C (-29.9 F)
1898	-29.4 C (-20.9 F)
1899	-41.7 C (-43.1 F)
1900	-38.9 C (-38.0 F)
1901	-28.3 C (-18.9 F)
1902	-23.9 C (-11.0 F)
1903	-26.7 C (-16.1 F)
1915	-23.3 C (-9.9 F)
1916	-34.4 C (-29.9 F)
1917	-36.7 C (-34.1 F)
1918	-36.7 C (-34.1 F)
1920	-41.7 C (-43.1 F)
1921	-26.1 C (-15.0 F)
1922	-31.7 C (-25.1 F)
1923	-35.6 C (-32.1 F)
1924	-32.8 C (-27.0 F)
1925	-33.3 C (-27.9 F)
1926	-35.0 C (-31.0 F)
1927	-42.8 C (-45.0 F)
1928	-40.6 C (-41.1 F)
1929	-35.6 C (-32.1 F)
1930	-37.8 C (-36.0 F)
1931	-26.1 C (-15.0 F)
1932	-30.0 C (-22.0 F)
1933	-37.2 C (-35.0 F)
1934	-43.3 C (-45.9 F)
1935	-40.0 C (-40.0 F)
1936	-36.1 C (-33.0 F)
1937	-31.7 C (-25.1 F)
1938	-38.3 C (-36.9 F)
1939	-40.0 C (-40.0 F)
1940	-33.3 C (-27.9 F)

Wettest day (Rx1day)

The wettest day of the year at Sidnaw, 1896 to 1940. The record is 106.2 mm (4.2 in) in 1932, marked on the chart; the median year is 46.0 mm (1.8 in).

Wettest day (Rx1day) at Sidnaw by year
Year	Wettest day (Rx1day)
1896	17.8 mm (0.7 in)
1897	33.0 mm (1.3 in)
1898	50.8 mm (2.0 in)
1899	36.8 mm (1.4 in)
1900	68.6 mm (2.7 in)
1901	35.6 mm (1.4 in)
1902	15.2 mm (0.6 in)
1903	7.6 mm (0.30 in)
1915	35.6 mm (1.4 in)
1916	84.6 mm (3.3 in)
1917	21.3 mm (0.8 in)
1918	24.6 mm (1.0 in)
1920	31.2 mm (1.2 in)
1921	51.1 mm (2.0 in)
1922	50.8 mm (2.0 in)
1923	51.1 mm (2.0 in)
1924	33.0 mm (1.3 in)
1925	38.1 mm (1.5 in)
1926	77.0 mm (3.0 in)
1927	73.7 mm (2.9 in)
1928	34.0 mm (1.3 in)
1929	55.1 mm (2.2 in)
1930	49.5 mm (1.9 in)
1931	66.0 mm (2.6 in)
1932	106.2 mm (4.2 in)
1933	48.8 mm (1.9 in)
1934	37.6 mm (1.5 in)
1935	35.1 mm (1.4 in)
1936	46.0 mm (1.8 in)
1937	53.1 mm (2.1 in)
1938	100.6 mm (4.0 in)
1939	58.4 mm (2.3 in)
1940	43.2 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sidnaw, 1896 to 1940. The record is 205.8 mm (8.1 in) in 1932, marked on the chart; the median year is 65.6 mm (2.6 in).

Wettest five days (Rx5day) at Sidnaw by year
Year	Wettest five days (Rx5day)
1896	22.9 mm (0.9 in)
1897	51.5 mm (2.0 in)
1898	76.2 mm (3.0 in)
1899	48.2 mm (1.9 in)
1900	57.9 mm (2.3 in)
1901	48.3 mm (1.9 in)
1902	27.9 mm (1.1 in)
1903	20.3 mm (0.8 in)
1915	63.3 mm (2.5 in)
1916	133.1 mm (5.2 in)
1917	56.1 mm (2.2 in)
1918	30.4 mm (1.2 in)
1920	71.4 mm (2.8 in)
1921	65.0 mm (2.6 in)
1922	102.9 mm (4.1 in)
1923	62.3 mm (2.5 in)
1924	52.8 mm (2.1 in)
1925	69.3 mm (2.7 in)
1926	94.3 mm (3.7 in)
1927	98.3 mm (3.9 in)
1928	65.6 mm (2.6 in)
1929	86.9 mm (3.4 in)
1930	84.8 mm (3.3 in)
1931	84.5 mm (3.3 in)
1932	205.8 mm (8.1 in)
1933	52.1 mm (2.1 in)
1934	90.9 mm (3.6 in)
1935	64.7 mm (2.5 in)
1936	70.7 mm (2.8 in)
1937	66.5 mm (2.6 in)
1938	100.6 mm (4.0 in)
1939	74.7 mm (2.9 in)
1940	44.5 mm (1.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sidnaw, 1896 to 1940. The record is 39 days in 1918, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Sidnaw by year
Year	Longest dry spell (CDD)
1896	9 days
1897	29 days
1898	29 days
1899	23 days
1900	16 days
1901	34 days
1902	22 days
1903	11 days
1915	19 days
1916	15 days
1917	33 days
1918	39 days
1920	30 days
1921	17 days
1922	13 days
1923	28 days
1924	19 days
1925	29 days
1926	10 days
1927	15 days
1928	20 days
1929	11 days
1930	19 days
1931	23 days
1932	21 days
1933	20 days
1934	14 days
1935	21 days
1936	16 days
1937	14 days
1938	17 days
1939	25 days
1940	21 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.

Frost Dates and Growing Season

22 years with a frost

Across 22 years with a frost, the median last spring frost at Sidnaw falls on 17 June and the median first autumn frost on 21 August, which leaves a median of 65 days between them.

Frost dates and growing season at Sidnaw
Measure	Median, all years	Earliest period	Recent period (1900 to 1938)	Recent against earliest	Fitted trend
Last spring frost	17 June	n/a	17 June	n/a	n/a
First autumn frost	21 August	n/a	21 August	n/a	n/a
Growing days	65 days	n/a	65 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Sidnaw standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sidnaw 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 2026-10-15 (15 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).