Record envelope, standing records and threshold days for Houlton 5N (USC00173944), Maine, United States, with 31 years of record.
Key Facts for Houlton 5N
Houlton 5N (USC00173944) is a weather station in Maine, United States at 46.21 latitude and -67.84 longitude, 119 m (390 ft) above sea level.
The station reports from 1985 to 2015, 31 years of record.
1,464 records set at Houlton 5N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Houlton 5N set a daily record high minimum temperature of 5.6 C (42.1 F) on 30 April 2015.
About the Station
Location: Maine, United States, 46.21 latitude, -67.84 longitude.
Elevation: 119 m (390 ft).
Period of record: 1985 to 2015, 31 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
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 Houlton 5N. 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 Houlton 5N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.3 C (55.9 F)
-42.2 C (-44.0 F)
n/a
n/a
Feb
15.0 C (59.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Mar
26.1 C (79.0 F)
-35.0 C (-31.0 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-22.8 C (-9.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-5.0 C (23.0 F)
n/a
n/a
Jun
34.4 C (93.9 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
35.6 C (96.1 F)
3.3 C (37.9 F)
n/a
n/a
Aug
35.6 C (96.1 F)
0.0 C (32.0 F)
n/a
n/a
Sep
33.9 C (93.0 F)
-3.9 C (25.0 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
20.0 C (68.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Dec
13.3 C (55.9 F)
-37.8 C (-36.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Houlton 5N still stand. 1989 holds the most, with 84.
Standing records at Houlton 5N by the year they were set
Year set
Standing records
1985
30
1986
72
1987
56
1988
66
1989
84
1990
66
1991
51
1992
59
1993
57
1994
55
1995
49
1996
57
1997
46
1998
30
1999
55
2000
40
2001
37
2002
51
2003
62
2004
35
2005
38
2006
51
2007
41
2008
37
2009
33
2010
52
2011
33
2012
34
2013
32
2014
43
2015
12
Wettest Day of Each Month
Sep: 99.6 mm (3.9 in)
The wettest day on record for each calendar month at Houlton 5N. The most was 99.6 mm (3.9 in) on 17 September 1999.
Record daily precipitation for each month at Houlton 5N
Month
Record daily precipitation (mm)
Date
Jan
51.6 mm (2.0 in)
17 January 1995
Feb
38.1 mm (1.5 in)
6 February 2011
Mar
65.5 mm (2.6 in)
17 March 2007
Apr
37.1 mm (1.5 in)
23 April 1993
May
43.7 mm (1.7 in)
24 May 2013
Jun
85.9 mm (3.4 in)
24 June 2012
Jul
97.5 mm (3.8 in)
5 July 2014
Aug
77.7 mm (3.1 in)
11 August 1998
Sep
99.6 mm (3.9 in)
17 September 1999
Oct
78.2 mm (3.1 in)
24 October 1990
Nov
73.4 mm (2.9 in)
15 November 2009
Dec
56.9 mm (2.2 in)
12 December 2008
Period of Record Coverage
1985 to 2015
Complete yearUnder 90 percent of days
31 years of record at Houlton 5N, 1985 to 2015. 3 years have data for under 90 percent of days and are left out of rankings: 1985, 2008, 2015.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Houlton 5N, 1986 to 2014. Blue stripes are years cooler than the station's own mean of 5.4 C (41.7 F); red stripes are warmer. The coolest year was 1989, at 3.8 C (38.8 F), and the warmest was 2010, at 7.6 C (45.6 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Houlton 5N as warming stripes, 1986 to 2014
Year
Annual mean temperature
Difference from the station mean
1986
4.4 C
-1.05 C
1987
5.0 C
-0.42 C
1988
5.1 C
-0.30 C
1989
3.8 C
-1.63 C
1990
5.7 C
+0.25 C
1991
5.2 C
-0.21 C
1992
4.4 C
-1.01 C
1993
4.4 C
-1.04 C
1994
4.5 C
-0.87 C
1995
4.9 C
-0.52 C
1996
5.1 C
-0.30 C
1997
4.2 C
-1.25 C
1998
6.4 C
+0.97 C
1999
7.0 C
+1.55 C
2000
5.4 C
-0.01 C
2001
6.3 C
+0.87 C
2002
5.5 C
+0.05 C
2003
4.9 C
-0.47 C
2004
5.1 C
-0.35 C
2006
7.1 C
+1.66 C
2007
5.1 C
-0.30 C
2009
5.3 C
-0.15 C
2010
7.6 C
+2.15 C
2011
6.3 C
+0.92 C
2012
6.7 C
+1.25 C
2013
5.6 C
+0.16 C
2014
5.4 C
-0.04 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
1985 to 2015
Yearly extremes at Houlton 5N: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.6 C (96.1 F)
1991
32.8 C (91.0 F)
31
Coldest night (TNn)
-42.2 C (-44.0 F)
1994
-31.1 C (-24.0 F)
31
Wettest day (Rx1day)
99.6 mm (3.9 in)
1999
56.4 mm (2.2 in)
31
Wettest five days (Rx5day)
206.9 mm (8.1 in)
2012
89.2 mm (3.5 in)
31
Longest dry spell (CDD)
25 days
2001
14 days
31
Hottest day (TXx)
The hottest day of the year at Houlton 5N, 1985 to 2015. The record is 35.6 C (96.1 F) in 1991, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Houlton 5N by year
Year
Hottest day (TXx)
1985
30.6 C (87.1 F)
1986
31.1 C (88.0 F)
1987
32.8 C (91.0 F)
1988
34.4 C (93.9 F)
1989
32.8 C (91.0 F)
1990
31.1 C (88.0 F)
1991
35.6 C (96.1 F)
1992
34.4 C (93.9 F)
1993
32.8 C (91.0 F)
1994
32.2 C (90.0 F)
1995
35.6 C (96.1 F)
1996
32.8 C (91.0 F)
1997
32.2 C (90.0 F)
1998
32.2 C (90.0 F)
1999
33.9 C (93.0 F)
2000
30.0 C (86.0 F)
2001
34.4 C (93.9 F)
2002
33.3 C (91.9 F)
2003
33.9 C (93.0 F)
2004
30.6 C (87.1 F)
2005
34.4 C (93.9 F)
2006
31.7 C (89.1 F)
2007
33.3 C (91.9 F)
2008
31.7 C (89.1 F)
2009
32.2 C (90.0 F)
2010
33.9 C (93.0 F)
2011
31.7 C (89.1 F)
2012
31.7 C (89.1 F)
2013
35.0 C (95.0 F)
2014
33.3 C (91.9 F)
2015
20.6 C (69.1 F)
Coldest night (TNn)
The coldest night of the year at Houlton 5N, 1985 to 2015. The record is -42.2 C (-44.0 F) in 1994, marked on the chart; the median year is -31.1 C (-24.0 F).
Coldest night (TNn) at Houlton 5N by year
Year
Coldest night (TNn)
1985
-30.0 C (-22.0 F)
1986
-30.0 C (-22.0 F)
1987
-33.3 C (-27.9 F)
1988
-32.2 C (-26.0 F)
1989
-37.8 C (-36.0 F)
1990
-30.6 C (-23.1 F)
1991
-33.9 C (-29.0 F)
1992
-30.6 C (-23.1 F)
1993
-37.2 C (-35.0 F)
1994
-42.2 C (-44.0 F)
1995
-39.4 C (-38.9 F)
1996
-31.1 C (-24.0 F)
1997
-32.8 C (-27.0 F)
1998
-31.1 C (-24.0 F)
1999
-32.2 C (-26.0 F)
2000
-31.1 C (-24.0 F)
2001
-35.0 C (-31.0 F)
2002
-29.4 C (-20.9 F)
2003
-32.2 C (-26.0 F)
2004
-33.3 C (-27.9 F)
2005
-30.0 C (-22.0 F)
2006
-24.4 C (-11.9 F)
2007
-28.9 C (-20.0 F)
2008
-34.4 C (-29.9 F)
2009
-37.8 C (-36.0 F)
2010
-25.0 C (-13.0 F)
2011
-28.9 C (-20.0 F)
2012
-31.1 C (-24.0 F)
2013
-27.8 C (-18.0 F)
2014
-31.1 C (-24.0 F)
2015
-31.7 C (-25.1 F)
Wettest day (Rx1day)
The wettest day of the year at Houlton 5N, 1985 to 2015. The record is 99.6 mm (3.9 in) in 1999, marked on the chart; the median year is 56.4 mm (2.2 in).
Wettest day (Rx1day) at Houlton 5N by year
Year
Wettest day (Rx1day)
1985
31.5 mm (1.2 in)
1986
53.3 mm (2.1 in)
1987
56.4 mm (2.2 in)
1988
34.3 mm (1.4 in)
1989
52.3 mm (2.1 in)
1990
78.2 mm (3.1 in)
1991
62.2 mm (2.4 in)
1992
68.8 mm (2.7 in)
1993
59.2 mm (2.3 in)
1994
45.5 mm (1.8 in)
1995
51.6 mm (2.0 in)
1996
80.5 mm (3.2 in)
1997
39.6 mm (1.6 in)
1998
77.7 mm (3.1 in)
1999
99.6 mm (3.9 in)
2000
37.6 mm (1.5 in)
2001
70.4 mm (2.8 in)
2002
50.8 mm (2.0 in)
2003
50.0 mm (2.0 in)
2004
35.1 mm (1.4 in)
2005
67.6 mm (2.7 in)
2006
70.9 mm (2.8 in)
2007
65.5 mm (2.6 in)
2008
56.9 mm (2.2 in)
2009
73.4 mm (2.9 in)
2010
49.8 mm (2.0 in)
2011
47.5 mm (1.9 in)
2012
85.9 mm (3.4 in)
2013
43.7 mm (1.7 in)
2014
97.5 mm (3.8 in)
2015
20.8 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Houlton 5N, 1985 to 2015. The record is 206.9 mm (8.1 in) in 2012, marked on the chart; the median year is 89.2 mm (3.5 in).
Wettest five days (Rx5day) at Houlton 5N by year
Year
Wettest five days (Rx5day)
1985
49.0 mm (1.9 in)
1986
65.8 mm (2.6 in)
1987
67.3 mm (2.6 in)
1988
52.9 mm (2.1 in)
1989
98.3 mm (3.9 in)
1990
103.6 mm (4.1 in)
1991
78.5 mm (3.1 in)
1992
98.0 mm (3.9 in)
1993
94.2 mm (3.7 in)
1994
86.4 mm (3.4 in)
1995
72.7 mm (2.9 in)
1996
106.2 mm (4.2 in)
1997
62.2 mm (2.4 in)
1998
89.2 mm (3.5 in)
1999
115.1 mm (4.5 in)
2000
66.6 mm (2.6 in)
2001
80.3 mm (3.2 in)
2002
69.4 mm (2.7 in)
2003
73.5 mm (2.9 in)
2004
66.6 mm (2.6 in)
2005
91.2 mm (3.6 in)
2006
104.3 mm (4.1 in)
2007
89.2 mm (3.5 in)
2008
89.7 mm (3.5 in)
2009
87.4 mm (3.4 in)
2010
89.7 mm (3.5 in)
2011
95.2 mm (3.7 in)
2012
206.9 mm (8.1 in)
2013
115.3 mm (4.5 in)
2014
116.1 mm (4.6 in)
2015
46.1 mm (1.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Houlton 5N, 1985 to 2015. The record is 25 days in 2001, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Houlton 5N by year
Year
Longest dry spell (CDD)
1985
13 days
1986
16 days
1987
19 days
1988
15 days
1989
11 days
1990
10 days
1991
12 days
1992
12 days
1993
11 days
1994
14 days
1995
21 days
1996
12 days
1997
16 days
1998
13 days
1999
11 days
2000
10 days
2001
25 days
2002
12 days
2003
12 days
2004
17 days
2005
19 days
2006
18 days
2007
14 days
2008
18 days
2009
13 days
2010
21 days
2011
11 days
2012
16 days
2013
14 days
2014
16 days
2015
10 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
27 years with a frost
Across 27 years with a frost, the median last spring frost at Houlton 5N falls on 19 May and the median first autumn frost on 17 September, which leaves a median of 120 days between them.
Fitted over all years, the growing season changes by +7.5 days per decade at this station.
Frost dates and growing season at Houlton 5N
Measure
Median, all years
Earliest period
Recent period (1986 to 2014)
Recent against earliest
Fitted trend
Last spring frost
19 May
n/a
19 May
n/a
-4.2 days per decade
First autumn frost
17 September
n/a
17 September
n/a
+3.3 days per decade
Growing days
120 days
n/a
120 days
n/a
+7.5 days per decade
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 Houlton 5N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Houlton 5N 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.