September 3, 1939 September 5, 1939 September 7, 1939 September 14, 1939 September 16, 1939 September 17, 1939 September 17, 1939 September 20, 1939 September 26, 1939 September 30, 1939
October
October 5, 1939 October 14, 1939 October 16, 1939 October 27, 1939 October 30, 1939
November
November 21, 1939 November 23, 1939 November 25, 1939
December
December 4, 1939 December 5, 1939 December 10, 1939
1940
January
January 30, 1940
February
February 5, 1940 February 14, 1940
March
March 16, 1940
June
June 12, 1940 June 14, 1940 June 22, 1940 June 25, 1940 June 30, 1940
July
July 2, 1940 July 4, 1940 July 8, 1940 July 10, 1940 July 17, 1940 July 26, 1940 July 31, 1940
August
August 4, 1940 August 5, 1940 August 15, 1940 August 16, 1940 August 23, 1940 August 24, 1940 August 25, 1940 August 28, 1940 August 30, 1940 August 31, 1940
September
September 2, 1940 September 4, 1940 September 6, 1940 September 8, 1940 September 15, 1940 September 17, 1940 September 18, 1940 September 20, 1940 September 21, 1940 September 26, 1940 September 27, 1940 September 28, 1940
October
October 9, 1940 October 11, 1940 October 14, 1940 October 15, 1940 October 17, 1940 October 18, 1940 October 19, 1940 October 22, 1940
November
November 5, 1940 November 6, 1940 November 15, 1940 November 21, 1940 November 22, 1940 November 23, 1940
December
December 1. 1940 December 11, 1940 December 27, 1940
1941
January
January 16, 1941 January 29, 1941
February
February 12, 1941 February 19, 1941 February 24, 1941 February 26, 1941 February 27, 1941
March
March 1, 1941 March 7, 1941 March 8, 1941 March 13, 1941 March 16, 1941 March 17, 1941 March 19, 1941 March 29, 1941
April
April 1, 1941 April 3, 1941 April 6, 1941 April 9, 1941 April 16, 1941 April 28, 1941
May
May 8, 1941 May 11, 1941 May 14, 1941 May 20, 1941 May 21 or 22, 1941 May 24, 1941 May 27, 1941.
June
June 1, 1941 June 11, 1941 June 13, 1941 June 24, 1941 June 26, 1941
July
July 7, 1941
August
August 5, 1941
September
September 10, 1941 September 15, 1941 September 19, 1941 September 22, 1941
October
October 16, 1941 October 21, 1941 October 31, 1941
February 10, 1942 February 15, 1942 February 16, 1942
March
March 20, 1942
May
May 12, 1942
June
June 10, 1942
July
July 4, 1942 July 5, 1942 July 6, 1942
August
August 8, 1942 August 15, 1942 August 16, 1942 August 17, 1942 August 19, 1942 August 22, 1942 August 28, 1942 August 31, 1942
September
September 9, 1942 USS Muskeget, a Coast Guard weather ship, is torpedoed near Weather Station #2, Lat. 54o N, Long 44o 30’W by U-755. 121 Officers and crew lost, including one Public Health Service officer and four weathermen, no survivors. September 14, 1942 September 20, 1942 September 22, 1942
October
October 4, 1942 October 13, 1942 October 14, 1942 October 24, 1942 October 25, 1942 October 27, 1942
November
November 2, 1942 November 18, 1942
December
December 8, 1942
1943
January
January 3, 1943 January 8, 1943 January 13, 1943 January 17, 1943 January 26, 1943
February
February 2, 1943 February 7, 1943 February 15, 1943
March
March 7, 1943 March 10, 1943 March 16, 1943 March 28, 1943
April
April 4, 1943 April 12, 1943 April 17, 1943 April 22, 1943
May
May 6, 1943 May 7, 1943 May 11, 1943
July
July 31, 1943
September
September 8, 1943
October
October 9, 1943 October 31, 1943
December
December 26, 1943
1944
April
April 6, 1944
July
July 20, 1944
August
August 3, 1944
September
September 8, 1944
1945
January
January 27, 1945
March
March 2, 1945
April
April 18, 1945
Month-by-month summaries
1939
September
October
November
December
Total Allied losses to mines during 1939 are 79 vessels totaling 262,700 tons.
