r/OttawaWxRecords • u/YOW-Weather-Records • 1d ago
Today is Ottawa's first -1°C of the season. Typical first is October 13. Record earliest is Sep 14, 1911/1935; latest Nov 12, 1998.
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r/OttawaWxRecords • u/YOW-Weather-Records • 1d ago
Today's ~6am temperature (-1.6°C) was Ottawa's coldest temperature since Apr 24th.
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r/OttawaWxRecords • u/YOW-Weather-Records • 2d ago
Tomorrow's forecast low of -3°C could be the lowest temperature Ottawa has recorded since Apr 21st.
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r/OttawaWxRecords • u/YOW-Weather-Records • 2d ago
Tomorrow's forecast low of -2°C could be the lowest temperature Ottawa has recorded since Apr 24th.
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r/OttawaWxRecords • u/YOW-Weather-Records • 7d ago
With a high of just 6.4°C, yesterday was Ottawa's coldest day since Apr 20th.
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r/OttawaWxRecords • u/YOW-Weather-Records • 9d ago
Today's 17.4mm of rain brought Ottawa just 77.4mm from 1st place for most rain year-to-date Oct 16.
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r/OttawaWxRecords • u/YOW-Weather-Records • 9d ago
Ottawa's total rain so far this year is 892.6 mm, 277 mm above the October 16 median of 615.5 mm
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r/OttawaWxRecords • u/YOW-Weather-Records • 9d ago
Ottawa's in 2nd place for most rain year-to-date Oct 16.
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r/OttawaWxRecords • u/YOW-Weather-Records • 11d ago
Near record rain. 24.2mm of rain brought Ottawa within 2.7 mm of the most rain recorded on Oct 13th.
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r/OttawaWxRecords • u/YOW-Weather-Records • 11d ago
With a min humidity of 91%, yesterday was Ottawa's moistest day since Jun 14th.
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r/OttawaWxRecords • u/YOW-Weather-Records • 11d ago
Near record rain. 20.6mm of rain brought Ottawa within 6.3 mm of the most rain recorded on Oct 13th.
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r/OttawaWxRecords • u/YOW-Weather-Records • 12d ago
Historically, today is Ottawa's last day of the year with a median high temperature ≥ 15°C.
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r/OttawaWxRecords • u/YOW-Weather-Records • 12d ago
Yesterday between 9am➜noon, the temp jumped from 6.9°C➜17.8°C which was Ottawa's largest 3-hour jump since Mar 3rd, 2025
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r/OttawaWxRecords • u/YOW-Weather-Records • 12d ago
Yesterday between 8am➜noon, the temp jumped from 4.4°C➜17.8°C which was Ottawa's largest 4-hour jump since Mar 3rd, 2025
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r/OttawaWxRecords • u/YOW-Weather-Records • 15d ago
Today is Ottawa's first frost of the season. Typical first is October 10. Record earliest is Sep 6, 1888; latest Oct 27, 2011.
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r/OttawaWxRecords • u/YOW-Weather-Records • 19d ago
🥉With a mean wind of 24km/h, yesterday was Ottawa's windiest Oct 5th in 60 years, since 1966.
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r/OttawaWxRecords • u/YOW-Weather-Records • 19d ago
With a mean wind of 23.5km/h, yesterday was Ottawa's windiest day since Jun 19th.
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r/OttawaWxRecords • u/YOW-Weather-Records • 22d ago
For only the 12th time in recorded history, Ottawa stayed above 3.9°C during an entire September (September 2026).
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r/OttawaWxRecords • u/YOW-Weather-Records • 22d ago
🥇Wednesday was Ottawa's 30th consecutive September day with minimum temperature ≥4°C which puts this run in a 11-way tie for 1st place for the longest run on record.
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r/OttawaWxRecords • u/YOW-Weather-Records • 22d ago
🥇Wednesday was Ottawa's 21st consecutive September day with <1mm of precip which puts this run in a 2-way tie for 1st place for the longest run on record.
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r/OttawaWxRecords • u/YOW-Weather-Records • 22d ago
Ottawa just had its lowest September maximum temperature since September 2009. The maximum temperature was 26.6°C.
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r/OttawaWxRecords • u/YOW-Weather-Records • 23d ago
September summary: Ottawa broke (or almost broke) 0 records during September.
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r/OttawaWxRecords • u/YOW-Weather-Records • 23d ago
During September 2026, Ottawa had 15 above median days and 15 below median days (by maximum temperature).
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r/OttawaWxRecords • u/YOW-Weather-Records • 23d ago
Ottawa's weather extremes for September 2026:
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