Record envelope, standing records and threshold days for Mira Monte Farm (USC00355621), Oregon, United States, with 32 years of record.
Key Facts for Mira Monte Farm
Mira Monte Farm (USC00355621) is a weather station in Oregon, United States at 45.27 latitude and -122.75 longitude, 49 m (161 ft) above sea level.
The station reports from 1893 to 1924, 32 years of record.
1,464 records set at Mira Monte Farm still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Mira Monte Farm set a daily record high minimum temperature of 9.4 C (48.9 F) on 31 January 1924.
About the Station
Location: Oregon, United States, 45.27 latitude, -122.75 longitude.
Elevation: 49 m (161 ft).
Period of record: 1893 to 1924, 32 years.
Eligible elements: tmax, tmin.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Mira Monte Farm. 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 Mira Monte Farm, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.1 C (61.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Feb
21.7 C (71.1 F)
-16.7 C (1.9 F)
n/a
n/a
Mar
26.1 C (79.0 F)
-6.7 C (19.9 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-3.3 C (26.1 F)
n/a
n/a
May
35.0 C (95.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
35.6 C (96.1 F)
0.6 C (33.1 F)
n/a
n/a
Jul
38.3 C (100.9 F)
2.8 C (37.0 F)
n/a
n/a
Aug
37.2 C (99.0 F)
3.3 C (37.9 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-2.2 C (28.0 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-3.9 C (25.0 F)
n/a
n/a
Nov
20.6 C (69.1 F)
-13.3 C (8.1 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-13.9 C (7.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mira Monte Farm still stand. 1895 holds the most, with 74.
Standing records at Mira Monte Farm by the year they were set
Year set
Standing records
1893
51
1894
22
1895
74
1896
73
1897
58
1898
49
1899
67
1900
44
1901
44
1902
54
1903
29
1904
47
1905
43
1906
66
1907
55
1908
43
1909
60
1910
28
1911
30
1912
29
1913
33
1914
34
1915
36
1916
66
1917
58
1918
46
1919
61
1920
50
1921
46
1922
27
1923
32
1924
9
Wettest Day of Each Month
Nov: 111.5 mm (4.4 in)
The wettest day on record for each calendar month at Mira Monte Farm. The most was 111.5 mm (4.4 in) on 20 November 1921.
Record daily precipitation for each month at Mira Monte Farm
Month
Record daily precipitation (mm)
Date
Jan
106.7 mm (4.2 in)
18 January 1911
Feb
46.5 mm (1.8 in)
6 February 1918
Mar
69.3 mm (2.7 in)
15 March 1894
Apr
40.6 mm (1.6 in)
16 April 1895
May
24.6 mm (1.0 in)
7 May 1900
Jun
42.2 mm (1.7 in)
20 June 1912
Jul
32.0 mm (1.3 in)
2 July 1902
Aug
25.7 mm (1.0 in)
24 August 1907
Sep
51.3 mm (2.0 in)
4 September 1911
Oct
81.3 mm (3.2 in)
7 October 1893
Nov
111.5 mm (4.4 in)
20 November 1921
Dec
68.1 mm (2.7 in)
19 December 1917
Period of Record Coverage
1893 to 1924
Complete yearUnder 90 percent of days
32 years of record at Mira Monte Farm, 1893 to 1924. 6 years have data for under 90 percent of days and are left out of rankings: 1894, 1908, 1910, 1919, 1922, 1924.
Cooler than the station meanWarmer than the station mean
One stripe for each of 24 complete years at Mira Monte Farm, 1893 to 1923. Blue stripes are years cooler than the station's own mean of 10.8 C (51.4 F); red stripes are warmer. The coolest year was 1893, at 9.6 C (49.2 F), and the warmest was 1906, at 11.8 C (53.2 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Mira Monte Farm as warming stripes, 1893 to 1923
Year
Annual mean temperature
Difference from the station mean
1893
9.6 C
-1.23 C
1895
10.5 C
-0.32 C
1896
10.6 C
-0.19 C
1897
10.9 C
+0.07 C
1898
10.8 C
-0.04 C
1899
10.3 C
-0.52 C
1900
11.2 C
+0.40 C
1901
10.7 C
-0.10 C
1902
10.7 C
-0.14 C
1903
10.3 C
-0.46 C
1904
11.3 C
+0.45 C
1905
11.0 C
+0.15 C
1906
11.8 C
+0.97 C
1907
11.3 C
+0.47 C
1911
10.6 C
-0.21 C
1912
10.9 C
+0.10 C
1913
10.6 C
-0.23 C
1914
11.3 C
+0.45 C
1915
11.1 C
+0.31 C
1916
9.7 C
-1.10 C
1917
11.1 C
+0.29 C
1918
11.7 C
+0.85 C
1920
10.6 C
-0.21 C
1923
11.1 C
+0.30 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
1893 to 1924
Yearly extremes at Mira Monte Farm: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1907
35.9 C (96.5 F)
32
Coldest night (TNn)
-19.4 C (-2.9 F)
1909
-8.3 C (17.1 F)
32
Wettest day (Rx1day)
111.5 mm (4.4 in)
1921
49.7 mm (2.0 in)
32
Wettest five days (Rx5day)
194.4 mm (7.7 in)
1921
107.2 mm (4.2 in)
32
Longest dry spell (CDD)
76 days
1905
42 days
32
Hottest day (TXx)
The hottest day of the year at Mira Monte Farm, 1893 to 1924. The record is 38.3 C (100.9 F) in 1907, marked on the chart; the median year is 35.9 C (96.5 F).
Hottest day (TXx) at Mira Monte Farm by year
Year
Hottest day (TXx)
1893
34.4 C (93.9 F)
1894
31.1 C (88.0 F)
1895
36.1 C (97.0 F)
1896
35.0 C (95.0 F)
1897
37.2 C (99.0 F)
1898
37.2 C (99.0 F)
1899
34.4 C (93.9 F)
1900
33.9 C (93.0 F)
1901
36.7 C (98.1 F)
1902
37.2 C (99.0 F)
1903
35.6 C (96.1 F)
1904
37.2 C (99.0 F)
1905
36.7 C (98.1 F)
1906
37.2 C (99.0 F)
1907
38.3 C (100.9 F)
1908
36.7 C (98.1 F)
1909
36.1 C (97.0 F)
1910
37.8 C (100.0 F)
1911
38.3 C (100.9 F)
1912
34.4 C (93.9 F)
1913
34.4 C (93.9 F)
1914
35.6 C (96.1 F)
1915
35.0 C (95.0 F)
1916
33.9 C (93.0 F)
1917
36.1 C (97.0 F)
1918
35.6 C (96.1 F)
1919
36.1 C (97.0 F)
1920
36.7 C (98.1 F)
1921
33.9 C (93.0 F)
1922
22.2 C (72.0 F)
1923
35.0 C (95.0 F)
1924
12.8 C (55.0 F)
Coldest night (TNn)
The coldest night of the year at Mira Monte Farm, 1893 to 1924. The record is -19.4 C (-2.9 F) in 1909, marked on the chart; the median year is -8.3 C (17.1 F).
Coldest night (TNn) at Mira Monte Farm by year
Year
Coldest night (TNn)
1893
-10.0 C (14.0 F)
1894
-7.2 C (19.0 F)
1895
-6.7 C (19.9 F)
1896
-13.3 C (8.1 F)
1897
-6.1 C (21.0 F)
1898
-8.3 C (17.1 F)
1899
-16.7 C (1.9 F)
1900
-7.2 C (19.0 F)
1901
-5.0 C (23.0 F)
1902
-12.2 C (10.0 F)
1903
-6.7 C (19.9 F)
1904
-5.6 C (21.9 F)
1905
-8.3 C (17.1 F)
1906
-5.0 C (23.0 F)
1907
-13.3 C (8.1 F)
1908
-6.1 C (21.0 F)
1909
-19.4 C (-2.9 F)
1910
-8.9 C (16.0 F)
1911
-9.4 C (15.1 F)
1912
-8.3 C (17.1 F)
1913
-7.8 C (18.0 F)
1914
-10.6 C (12.9 F)
1915
-7.8 C (18.0 F)
1916
-12.8 C (9.0 F)
1917
-8.9 C (16.0 F)
1918
-5.0 C (23.0 F)
1919
-13.9 C (7.0 F)
1920
-5.6 C (21.9 F)
1921
-7.2 C (19.0 F)
1922
-10.0 C (14.0 F)
1923
-8.3 C (17.1 F)
1924
-13.3 C (8.1 F)
Wettest day (Rx1day)
The wettest day of the year at Mira Monte Farm, 1893 to 1924. The record is 111.5 mm (4.4 in) in 1921, marked on the chart; the median year is 49.7 mm (2.0 in).
Wettest day (Rx1day) at Mira Monte Farm by year
Year
Wettest day (Rx1day)
1893
81.3 mm (3.2 in)
1894
69.3 mm (2.7 in)
1895
53.3 mm (2.1 in)
1896
75.4 mm (3.0 in)
1897
41.4 mm (1.6 in)
1898
45.0 mm (1.8 in)
1899
41.4 mm (1.6 in)
1900
42.2 mm (1.7 in)
1901
51.3 mm (2.0 in)
1902
46.7 mm (1.8 in)
1903
58.4 mm (2.3 in)
1904
33.0 mm (1.3 in)
1905
33.3 mm (1.3 in)
1906
54.9 mm (2.2 in)
1907
48.5 mm (1.9 in)
1908
52.6 mm (2.1 in)
1909
55.1 mm (2.2 in)
1910
38.6 mm (1.5 in)
1911
106.7 mm (4.2 in)
1912
58.4 mm (2.3 in)
1913
34.3 mm (1.4 in)
1914
41.1 mm (1.6 in)
1915
49.8 mm (2.0 in)
1916
49.3 mm (1.9 in)
1917
68.1 mm (2.7 in)
1918
49.5 mm (1.9 in)
1919
47.5 mm (1.9 in)
1920
57.2 mm (2.3 in)
1921
111.5 mm (4.4 in)
1922
37.6 mm (1.5 in)
1923
66.8 mm (2.6 in)
1924
34.0 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mira Monte Farm, 1893 to 1924. The record is 194.4 mm (7.7 in) in 1921, marked on the chart; the median year is 107.2 mm (4.2 in).
Wettest five days (Rx5day) at Mira Monte Farm by year
Year
Wettest five days (Rx5day)
1893
164.2 mm (6.5 in)
1894
152.6 mm (6.0 in)
1895
151.4 mm (6.0 in)
1896
193.0 mm (7.6 in)
1897
102.8 mm (4.0 in)
1898
76.7 mm (3.0 in)
1899
102.8 mm (4.0 in)
1900
72.0 mm (2.8 in)
1901
126.5 mm (5.0 in)
1902
91.9 mm (3.6 in)
1903
109.4 mm (4.3 in)
1904
82.5 mm (3.2 in)
1905
84.1 mm (3.3 in)
1906
107.1 mm (4.2 in)
1907
107.2 mm (4.2 in)
1908
81.3 mm (3.2 in)
1909
138.7 mm (5.5 in)
1910
121.4 mm (4.8 in)
1911
174.6 mm (6.9 in)
1912
106.9 mm (4.2 in)
1913
83.9 mm (3.3 in)
1914
94.9 mm (3.7 in)
1915
100.1 mm (3.9 in)
1916
116.6 mm (4.6 in)
1917
174.6 mm (6.9 in)
1918
106.5 mm (4.2 in)
1919
141.4 mm (5.6 in)
1920
114.6 mm (4.5 in)
1921
194.4 mm (7.7 in)
1922
85.2 mm (3.4 in)
1923
114.1 mm (4.5 in)
1924
63.9 mm (2.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Mira Monte Farm, 1893 to 1924. The record is 76 days in 1905, marked on the chart; the median year is 42 days.
Longest dry spell (CDD) at Mira Monte Farm by year
Year
Longest dry spell (CDD)
1893
44 days
1894
7 days
1895
55 days
1896
52 days
1897
35 days
1898
23 days
1899
23 days
1900
30 days
1901
54 days
1902
33 days
1903
33 days
1904
41 days
1905
76 days
1906
69 days
1907
34 days
1908
42 days
1909
20 days
1910
75 days
1911
42 days
1912
21 days
1913
30 days
1914
57 days
1915
44 days
1916
30 days
1917
68 days
1918
42 days
1919
65 days
1920
34 days
1921
47 days
1922
13 days
1923
44 days
1924
6 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
24 years with a frost
Across 24 years with a frost, the median last spring frost at Mira Monte Farm falls on 28 April and the median first autumn frost on 28 October, which leaves a median of 179 days between them.
Frost dates and growing season at Mira Monte Farm
Measure
Median, all years
Earliest period
Recent period (1893 to 1923)
Recent against earliest
Fitted trend
Last spring frost
28 April
n/a
28 April
n/a
n/a
First autumn frost
28 October
n/a
28 October
n/a
n/a
Growing days
179 days
n/a
179 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 Mira Monte Farm standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mira Monte Farm 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.