. >> reporter: the last few years have been tough for california farmer jordan parsons. >> since 2011, we have had complete crop failures the last four years in a row. in terms of the irrigated stuff, we have seen acreage drop because our wells can't hold up. >> reporter: now for the first time in a long time, his fields are green, thanks to the el niÑo global weather system. near san diego where surfers catch pacific waves, technicians take readings of ocean temperatures at the end of pier. but while rain and snow have increased el niÑo won't wipe out the effects of years of droughts, scientists say. >> it's really quite unlikely. even if we had a normal strong el nino, we would be unlikely to erase our ways out of years of drought. >> reporter: officials say the 38 million californians need to keep conservative water. >> we can't say that the drought is over yet. we're still in the rainy season. we don't know how much we'll end up with, so basically the message has been -- people have really stepped up to plate and tried to conservative, and we want them to keep doing so. >> repor

. >> the last few years have been tough for california farmer jordan parsons. >> the last four years in a rewe've had complete crop failures. in terms of the irrigated stuff we've seen acreage drop because our wells can't hold up. >> now for the first time in a long time his fields are green thanks to the el nino global weather system that's bringing water to california. scientists measuring the snow pack in the sierra nevada mountains say it's well above normal for this kind of the year. the scripps ocean og iography institute. >> we would be very unlikely to erase our way out of the long years of drought. >> officials say that 38 million californians need to keep conserving water. >> we can't say the drought is over yet. we're still in the rainy season don't know how much we'll end up with so basically, the message has been, people have stepped up to the plate and tried to conserve in the urban sector and we want them to keep doing so. >> farmers complain about water settle aside for the environment and at-risk species including commercially valuable salmon. >> as a farmer it's har

. >> the last few years have been tough for california farmer jordan parsons. >> since 2011, we've had complete cop failures the last four games in a row. we've seen acreage drop because our wells can't hold up. >> for the first time in a long time, his fields are green, thanks to the el niÑo global weather system bringing water to calle. scientists measuring the snow pack in the sierra nevada mountains say it's well above average for this time of year. near san diego where surfers catch pacific waves, technician from the institution of oceanography take readings of ocean temperatures at the end of a peer. aisle rain and snow increased, el niÑo won't wipe out the effect of years of drought. >> even if we had a normal strong el niÑo, we would be unlikely to erase our way out of so many years of drought we've had at this point. >> no one knows how strong it will be, so the 38 million californians need to keep conserving water. >> we can't say that the drought is over yet. we're still in the rainy season. we don't know how much we will end up with, so basically, the message has been, y