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Rainfall in Boston

How much rain fell in Boston, Lincolnshire? Daily, weekly and monthly totals averaged over the Environment Agency rain gauges within 15km, updated every 15 minutes.

The average of 3 rain gauges within 15km of the centre of Boston's monitored area, all reporting in the last two days. This October they range from 64.0mm to 79.0mm. The nearest is Rainfall gauge nr Boston, 0.0km away. Rain can be very local, so one street may differ from the average.
0.2mm
Yesterday (25 Oct 2026)
41.6mm
Last 7 days
72.7mm
October so far
vs 66.3mm avg — 10% wetter
2.9mm
Today so far (UTC)

Rain forecast

Next 24 hours: about 0.9mm of rain forecast for the area around Boston, heaviest in the hour to Tue 06:00 (0.5mm).

A computer model forecast (DWD ICON) for a square about 15 km across, updated 11:05 UK time. It is a forecast, not a measurement, and not a Met Office forecast. Weather data by Open-Meteo (CC BY 4.0).

Next 4 days

Daily totals for UK days from the same computer model; "dry" means under 0.2mm. Forecasts further ahead are less certain.

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Nearest rain gauges to Boston

GaugeDistanceYesterday7 daysOctoberToday
Rainfall gauge nr Boston 0.0km 0.0mm 37.0mm 64.0mm 3.0mm
Rainfall gauge nr South Holland nr South Holland 14.3km 0.4mm 44.5mm 79.0mm 2.5mm
Rainfall gauge nr Holbeach CP nr Holbeach CP 14.5km 0.2mm 43.2mm 75.2mm 3.2mm

Last 30 days (average of 3 gauges within 15km)

Daily totals 26 Sep–25 Oct. Wettest day: 10.6mm.

Rain days this October

14 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Boston, against a full-month average of 18.3 rain days (based on 2 months of records at this gauge).

Rainfall year by year in Boston

2026 so far: 420 mm (1 Jan to 25 Oct), against 496 mm by the same date in an average year (2012–2025) — 15% drier.

One bar per calendar year, the average of 3 local rain gauges: the Environment Agency's quality-checked daily archive, then live telemetry for the latest months. Wettest: 2019 (827 mm). Driest: 2013 (516 mm). Average: 635 mm a year. Striped years have gaps in the record, so no total is shown for them.

Wettest days and storms in Boston

Wettest days since 2011

  1. 73.8 mm 10 Jun 2019up to 79.6 mm at one gauge
  2. 41.8 mm 23 Dec 2020up to 51.0 mm at one gauge
  3. 39.8 mm 27 Jun 2017up to 44.2 mm at one gauge
  4. 37.7 mm 16 Aug 2022up to 55.6 mm at one gauge
  5. 33.8 mm 23 Aug 2013up to 38.6 mm at one gauge

Storms that brought the most rain here

  1. 67.7 mm Storm Babet · 18–22 Oct 2023
  2. 33.3 mm St Jude storm 2013 · 27–28 Oct 2013
  3. 32.1 mm Storm Callum · 11–14 Oct 2018
  4. 32.0 mm Storm Angus · 19–21 Nov 2016
  5. 30.8 mm Storm Henk · 2–5 Jan 2024

Daily totals are the average of 3 local rain gauges, for UTC days; one gauge can catch much more than the average. A storm's figure adds up the rain measured on its dates, from our list of Met Office named storms and major floods — other weather on those days counts too.

Average rainfall in Boston

Boston gets about 612 mm of rain a year on average (wettest month August, 66 mm; driest March, 35 mm). That is drier than the UK as a whole, which averages 1,163 mm a year.

Monthly averages in mm. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.6 km from the town's gauge centre. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0. UK comparison: Met Office HadUK-Grid areal series, 1991-2020, Open Government Licence v3.0.

Gauges and storm overflows around Boston

Rain gauge River gauge Storm overflow

Rivers near Boston

Nearest river gauges

A level is shown only when the gauge's latest reading is under 6 hours old. Distances are straight-line from the centre of Boston's monitored area.

Storm overflows near Boston

10 storm overflows within 5 km of the centre of Boston's monitored area. None of the 10 with a live status is discharging right now.

The most spills in 2025

Sewage & storm overflows →

Event Duration Monitors show when an overflow may be spilling; they do not confirm it, and this is not advice on water quality. A live status older than two hours counts as no current status. Live status: © Anglian Water storm overflow activity data, licensed under CC BY 4.0. Annual spill figures: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence (OGL) v3.0.

About Boston

Boston, Lincolnshire
Photo: Wikimedia Commons (author and licence on the file page)

Town and port in Lincolnshire, England

Boston is a market town and inland port in the borough of the same name in the county of Lincolnshire, England. It lies to the south-east of Lincoln, east of Nottingham and north-east of Peterborough. The town had a population of 45,339 at the 2021 census, while the borough had an estimated population of 66,900 at the ONS mid-2015 estimates. The Haven in Boston flows about 5 mi (8 km) to the Lincolnshire coast at The Wash, a bay between Lincolnshire and Norfolk.

From Wikipedia, the free encyclopedia (CC BY-SA 4.0).

Frequently asked questions

How much rain fell in Boston yesterday?

0.2mm of rain fell yesterday (25 Oct 2026), from the average of 3 rain gauges within 15km of Boston.

Is this month wetter than normal in Boston?

October so far: 72.7mm vs 66.3mm October average — 10% wetter (the average covers the whole month; we are 26 days in). Figures are the average of 3 rain gauges within 15km.

Where is the nearest rain gauge to Boston?

Rainfall gauge nr Boston is the nearest rain gauge, 0.0km from the centre of Boston's monitored area. Rain gauges can be several kilometres from the town itself, so very local downpours may not register exactly.

How many rain days has Boston had this month?

14 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Boston, against a full-month average of 18.3 rain days.

What was the wettest year in Boston?

2019 was the wettest year in the record since 2012, with 827 mm from the average of 3 local rain gauges, against an average of 635 mm a year. The driest was 2013, with 516 mm.

What is the wettest day on record in Boston?

10 Jun 2019: 73.8 mm on average across 3 local rain gauges, and up to 79.6 mm at one of them. Records since 16 May 2011.

Rainfall data: Environment Agency rain gauges, synced every 15 minutes. Daily totals are computed overnight (UTC days); "today so far" is live. Gauge distances are straight-line from the centre of Boston's monitored area — local rainfall can vary over short distances.